unix/gtkdlg.c

   1 /*
   2  * gtkdlg.c - GTK implementation of the PuTTY configuration box.
   3  */
   4
   5 #include <assert.h>
   6 #include <stdarg.h>
   7 #include <ctype.h>
   8 #include <time.h>
   9 #include <gtk/gtk.h>
  10 #include <gdk/gdkkeysyms.h>
  11 #include <gdk/gdkx.h>
  12 #include <X11/Xlib.h>
  13 #include <X11/Xutil.h>
  14
  15 #include "gtkcols.h"
  16 #include "gtkfont.h"
  17
  18 #ifdef TESTMODE
  19 #define PUTTY_DO_GLOBALS               /* actually _define_ globals */
  20 #endif
  21
  22 #include "putty.h"
  23 #include "storage.h"
  24 #include "dialog.h"
  25 #include "tree234.h"
  26
  27 struct Shortcut {
  28     GtkWidget *widget;
  29     struct uctrl *uc;
  30     int action;
  31 };
  32
  33 struct Shortcuts {
  34     struct Shortcut sc[128];
  35 };
  36
  37 struct uctrl {
  38     union control *ctrl;
  39     GtkWidget *toplevel;
  40     void *privdata;
  41     int privdata_needs_free;
  42     GtkWidget **buttons; int nbuttons; /* for radio buttons */
  43     GtkWidget *entry;         /* for editbox, filesel, fontsel */
  44     GtkWidget *button;        /* for filesel, fontsel */
  45 #if !GTK_CHECK_VERSION(2,4,0)
  46     GtkWidget *list;          /* for listbox (in GTK1), combobox (<=GTK2.3) */
  47     GtkWidget *menu;          /* for optionmenu (==droplist) */
  48     GtkWidget *optmenu;       /* also for optionmenu */
  49 #else
  50     GtkWidget *combo;         /* for combo box (either editable or not) */
  51 #endif
  52 #if GTK_CHECK_VERSION(2,0,0)
  53     GtkWidget *treeview;      /* for listbox (GTK2), droplist+combo (>=2.4) */
  54     GtkListStore *listmodel;  /* for all types of list box */
  55 #endif
  56     GtkWidget *text;          /* for text */
  57     GtkWidget *label;         /* for dlg_label_change */
  58     GtkAdjustment *adj;       /* for the scrollbar in a list box */
  59     guint entrysig;
  60     guint textsig;
  61     int nclicks;
  62 };
  63
  64 struct dlgparam {
  65     tree234 *byctrl, *bywidget;
  66     void *data;
  67     struct { unsigned char r, g, b, ok; } coloursel_result;   /* 0-255 */
  68     /* `flags' are set to indicate when a GTK signal handler is being called
  69      * due to automatic processing and should not flag a user event. */
  70     int flags;
  71     struct Shortcuts *shortcuts;
  72     GtkWidget *window, *cancelbutton;
  73     union control *currfocus, *lastfocus;
  74 #if !GTK_CHECK_VERSION(2,0,0)
  75     GtkWidget *currtreeitem, **treeitems;
  76     int ntreeitems;
  77 #endif
  78     int retval;
  79 };
  80 #define FLAG_UPDATING_COMBO_LIST 1
  81 #define FLAG_UPDATING_LISTBOX    2
  82
  83 enum {                                 /* values for Shortcut.action */
  84     SHORTCUT_EMPTY,                    /* no shortcut on this key */
  85     SHORTCUT_TREE,                     /* focus a tree item */
  86     SHORTCUT_FOCUS,                    /* focus the supplied widget */
  87     SHORTCUT_UCTRL,                    /* do something sane with uctrl */
  88     SHORTCUT_UCTRL_UP,                 /* uctrl is a draglist, move Up */
  89     SHORTCUT_UCTRL_DOWN,               /* uctrl is a draglist, move Down */
  90 };
  91
  92 #if GTK_CHECK_VERSION(2,0,0)
  93 enum {
  94     TREESTORE_PATH,
  95     TREESTORE_PARAMS,
  96     TREESTORE_NUM
  97 };
  98 #endif
  99
 100 /*
 101  * Forward references.
 102  */
 103 static gboolean widget_focus(GtkWidget *widget, GdkEventFocus *event,
 104                              gpointer data);
 105 static void shortcut_add(struct Shortcuts *scs, GtkWidget *labelw,
 106                          int chr, int action, void *ptr);
 107 static void shortcut_highlight(GtkWidget *label, int chr);
 108 #if !GTK_CHECK_VERSION(2,0,0)
 109 static gboolean listitem_single_key(GtkWidget *item, GdkEventKey *event,
 110                                     gpointer data);
 111 static gboolean listitem_multi_key(GtkWidget *item, GdkEventKey *event,
 112                                    gpointer data);
 113 static gboolean listitem_button_press(GtkWidget *item, GdkEventButton *event,
 114                                       gpointer data);
 115 static gboolean listitem_button_release(GtkWidget *item, GdkEventButton *event,
 116                                         gpointer data);
 117 #endif
 118 #if !GTK_CHECK_VERSION(2,4,0)
 119 static void menuitem_activate(GtkMenuItem *item, gpointer data);
 120 #endif
 121 static void coloursel_ok(GtkButton *button, gpointer data);
 122 static void coloursel_cancel(GtkButton *button, gpointer data);
 123 static void window_destroy(GtkWidget *widget, gpointer data);
 124 int get_listitemheight(GtkWidget *widget);
 125
 126 static int uctrl_cmp_byctrl(void *av, void *bv)
 127 {
 128     struct uctrl *a = (struct uctrl *)av;
 129     struct uctrl *b = (struct uctrl *)bv;
 130     if (a->ctrl < b->ctrl)
 131         return -1;
 132     else if (a->ctrl > b->ctrl)
 133         return +1;
 134     return 0;
 135 }
 136
 137 static int uctrl_cmp_byctrl_find(void *av, void *bv)
 138 {
 139     union control *a = (union control *)av;
 140     struct uctrl *b = (struct uctrl *)bv;
 141     if (a < b->ctrl)
 142         return -1;
 143     else if (a > b->ctrl)
 144         return +1;
 145     return 0;
 146 }
 147
 148 static int uctrl_cmp_bywidget(void *av, void *bv)
 149 {
 150     struct uctrl *a = (struct uctrl *)av;
 151     struct uctrl *b = (struct uctrl *)bv;
 152     if (a->toplevel < b->toplevel)
 153         return -1;
 154     else if (a->toplevel > b->toplevel)
 155         return +1;
 156     return 0;
 157 }
 158
 159 static int uctrl_cmp_bywidget_find(void *av, void *bv)
 160 {
 161     GtkWidget *a = (GtkWidget *)av;
 162     struct uctrl *b = (struct uctrl *)bv;
 163     if (a < b->toplevel)
 164         return -1;
 165     else if (a > b->toplevel)
 166         return +1;
 167     return 0;
 168 }
 169
 170 static void dlg_init(struct dlgparam *dp)
 171 {
 172     dp->byctrl = newtree234(uctrl_cmp_byctrl);
 173     dp->bywidget = newtree234(uctrl_cmp_bywidget);
 174     dp->coloursel_result.ok = FALSE;
 175     dp->window = dp->cancelbutton = NULL;
 176 #if !GTK_CHECK_VERSION(2,0,0)
 177     dp->treeitems = NULL;
 178     dp->currtreeitem = NULL;
 179 #endif
 180     dp->flags = 0;
 181     dp->currfocus = NULL;
 182 }
 183
 184 static void dlg_cleanup(struct dlgparam *dp)
 185 {
 186     struct uctrl *uc;
 187
 188     freetree234(dp->byctrl);           /* doesn't free the uctrls inside */
 189     dp->byctrl = NULL;
 190     while ( (uc = index234(dp->bywidget, 0)) != NULL) {
 191         del234(dp->bywidget, uc);
 192         if (uc->privdata_needs_free)
 193             sfree(uc->privdata);
 194         sfree(uc->buttons);
 195         sfree(uc);
 196     }
 197     freetree234(dp->bywidget);
 198     dp->bywidget = NULL;
 199 #if !GTK_CHECK_VERSION(2,0,0)
 200     sfree(dp->treeitems);
 201 #endif
 202 }
 203
 204 static void dlg_add_uctrl(struct dlgparam *dp, struct uctrl *uc)
 205 {
 206     add234(dp->byctrl, uc);
 207     add234(dp->bywidget, uc);
 208 }
 209
 210 static struct uctrl *dlg_find_byctrl(struct dlgparam *dp, union control *ctrl)
 211 {
 212     if (!dp->byctrl)
 213         return NULL;
 214     return find234(dp->byctrl, ctrl, uctrl_cmp_byctrl_find);
 215 }
 216
 217 static struct uctrl *dlg_find_bywidget(struct dlgparam *dp, GtkWidget *w)
 218 {
 219     struct uctrl *ret = NULL;
 220     if (!dp->bywidget)
 221         return NULL;
 222     do {
 223         ret = find234(dp->bywidget, w, uctrl_cmp_bywidget_find);
 224         if (ret)
 225             return ret;
 226         w = w->parent;
 227     } while (w);
 228     return ret;
 229 }
 230
 231 void *dlg_get_privdata(union control *ctrl, void *dlg)
 232 {
 233     struct dlgparam *dp = (struct dlgparam *)dlg;
 234     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 235     return uc->privdata;
 236 }
 237
 238 void dlg_set_privdata(union control *ctrl, void *dlg, void *ptr)
 239 {
 240     struct dlgparam *dp = (struct dlgparam *)dlg;
 241     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 242     uc->privdata = ptr;
 243     uc->privdata_needs_free = FALSE;
 244 }
 245
 246 void *dlg_alloc_privdata(union control *ctrl, void *dlg, size_t size)
 247 {
 248     struct dlgparam *dp = (struct dlgparam *)dlg;
 249     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 250     /*
 251      * This is an internal allocation routine, so it's allowed to
 252      * use smalloc directly.
 253      */
 254     uc->privdata = smalloc(size);
 255     uc->privdata_needs_free = FALSE;
 256     return uc->privdata;
 257 }
 258
 259 union control *dlg_last_focused(union control *ctrl, void *dlg)
 260 {
 261     struct dlgparam *dp = (struct dlgparam *)dlg;
 262     if (dp->currfocus != ctrl)
 263         return dp->currfocus;
 264     else
 265         return dp->lastfocus;
 266 }
 267
 268 void dlg_radiobutton_set(union control *ctrl, void *dlg, int which)
 269 {
 270     struct dlgparam *dp = (struct dlgparam *)dlg;
 271     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 272     assert(uc->ctrl->generic.type == CTRL_RADIO);
 273     assert(uc->buttons != NULL);
 274     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(uc->buttons[which]), TRUE);
 275 }
 276
 277 int dlg_radiobutton_get(union control *ctrl, void *dlg)
 278 {
 279     struct dlgparam *dp = (struct dlgparam *)dlg;
 280     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 281     int i;
 282
 283     assert(uc->ctrl->generic.type == CTRL_RADIO);
 284     assert(uc->buttons != NULL);
 285     for (i = 0; i < uc->nbuttons; i++)
 286         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(uc->buttons[i])))
 287             return i;
 288     return 0;                          /* got to return something */
 289 }
 290
 291 void dlg_checkbox_set(union control *ctrl, void *dlg, int checked)
 292 {
 293     struct dlgparam *dp = (struct dlgparam *)dlg;
 294     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 295     assert(uc->ctrl->generic.type == CTRL_CHECKBOX);
 296     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(uc->toplevel), checked);
 297 }
 298
 299 int dlg_checkbox_get(union control *ctrl, void *dlg)
 300 {
 301     struct dlgparam *dp = (struct dlgparam *)dlg;
 302     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 303     assert(uc->ctrl->generic.type == CTRL_CHECKBOX);
 304     return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(uc->toplevel));
 305 }
 306
 307 void dlg_editbox_set(union control *ctrl, void *dlg, char const *text)
 308 {
 309     struct dlgparam *dp = (struct dlgparam *)dlg;
 310     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 311     GtkWidget *entry;
 312     char *tmpstring;
 313     assert(uc->ctrl->generic.type == CTRL_EDITBOX);
 314
 315 #if GTK_CHECK_VERSION(2,4,0)
 316     if (uc->combo)
 317         entry = gtk_bin_get_child(GTK_BIN(uc->combo));
 318     else
 319 #endif
 320     entry = uc->entry;
 321
 322     assert(entry != NULL);
 323
 324     /*
 325      * GTK 2 implements gtk_entry_set_text by means of two separate
 326      * operations: first delete the previous text leaving the empty
 327      * string, then insert the new text. This causes two calls to
 328      * the "changed" signal.
 329      *
 330      * The first call to "changed", if allowed to proceed normally,
 331      * will cause an EVENT_VALCHANGE event on the edit box, causing
 332      * a call to dlg_editbox_get() which will read the empty string
 333      * out of the GtkEntry - and promptly write it straight into
 334      * the Config structure, which is precisely where our `text'
 335      * pointer is probably pointing, so the second editing
 336      * operation will insert that instead of the string we
 337      * originally asked for.
 338      *
 339      * Hence, we must take our own copy of the text before we do
 340      * this.
 341      */
 342     tmpstring = dupstr(text);
 343     gtk_entry_set_text(GTK_ENTRY(entry), tmpstring);
 344     sfree(tmpstring);
 345 }
 346
 347 void dlg_editbox_get(union control *ctrl, void *dlg, char *buffer, int length)
 348 {
 349     struct dlgparam *dp = (struct dlgparam *)dlg;
 350     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 351     assert(uc->ctrl->generic.type == CTRL_EDITBOX);
 352
 353 #if GTK_CHECK_VERSION(2,4,0)
 354     if (uc->combo) {
 355 #if GTK_CHECK_VERSION(2,6,0)
 356         strncpy(buffer,
 357                 gtk_combo_box_get_active_text(GTK_COMBO_BOX(uc->combo)),
 358                 length);
 359 #else
 360         strncpy(buffer,
 361                 gtk_entry_get_text
 362                 (GTK_ENTRY(gtk_bin_get_child(GTK_BIN(uc->combo)))),
 363                 length);
 364 #endif
 365         buffer[length-1] = '\0';
 366         return;
 367     }
 368 #endif
 369
 370     if (uc->entry) {
 371         strncpy(buffer, gtk_entry_get_text(GTK_ENTRY(uc->entry)),
 372                 length);
 373         buffer[length-1] = '\0';
 374         return;
 375     }
 376
 377     assert(!"We shouldn't get here");
 378 }
 379
 380 #if !GTK_CHECK_VERSION(2,4,0)
 381 static void container_remove_and_destroy(GtkWidget *w, gpointer data)
 382 {
 383     GtkContainer *cont = GTK_CONTAINER(data);
 384     /* gtk_container_remove will unref the widget for us; we need not. */
 385     gtk_container_remove(cont, w);
 386 }
 387 #endif
 388
 389 /* The `listbox' functions can also apply to combo boxes. */
 390 void dlg_listbox_clear(union control *ctrl, void *dlg)
 391 {
 392     struct dlgparam *dp = (struct dlgparam *)dlg;
 393     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 394
 395     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 396            uc->ctrl->generic.type == CTRL_LISTBOX);
 397
 398 #if !GTK_CHECK_VERSION(2,4,0)
 399     if (uc->menu) {
 400         gtk_container_foreach(GTK_CONTAINER(uc->menu),
 401                               container_remove_and_destroy,
 402                               GTK_CONTAINER(uc->menu));
 403         return;
 404     }
 405     if (uc->list) {
 406         gtk_list_clear_items(GTK_LIST(uc->list), 0, -1);
 407         return;
 408     }
 409 #endif
 410 #if GTK_CHECK_VERSION(2,0,0)
 411     if (uc->listmodel) {
 412         gtk_list_store_clear(uc->listmodel);
 413         return;
 414     }
 415 #endif
 416     assert(!"We shouldn't get here");
 417 }
 418
 419 void dlg_listbox_del(union control *ctrl, void *dlg, int index)
 420 {
 421     struct dlgparam *dp = (struct dlgparam *)dlg;
 422     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 423
 424     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 425            uc->ctrl->generic.type == CTRL_LISTBOX);
 426
 427 #if !GTK_CHECK_VERSION(2,4,0)
 428     if (uc->menu) {
 429         gtk_container_remove
 430             (GTK_CONTAINER(uc->menu),
 431              g_list_nth_data(GTK_MENU_SHELL(uc->menu)->children, index));
 432         return;
 433     }
 434     if (uc->list) {
 435         gtk_list_clear_items(GTK_LIST(uc->list), index, index+1);
 436         return;
 437     }
 438 #endif
 439 #if GTK_CHECK_VERSION(2,0,0)
 440     if (uc->listmodel) {
 441         GtkTreePath *path;
 442         GtkTreeIter iter;
 443         assert(uc->listmodel != NULL);
 444         path = gtk_tree_path_new_from_indices(index, -1);
 445         gtk_tree_model_get_iter(GTK_TREE_MODEL(uc->listmodel), &iter, path);
 446         gtk_list_store_remove(uc->listmodel, &iter);
 447         gtk_tree_path_free(path);
 448         return;
 449     }
 450 #endif
 451     assert(!"We shouldn't get here");
 452 }
 453
 454 void dlg_listbox_add(union control *ctrl, void *dlg, char const *text)
 455 {
 456     dlg_listbox_addwithid(ctrl, dlg, text, 0);
 457 }
 458
 459 /*
 460  * Each listbox entry may have a numeric id associated with it.
 461  * Note that some front ends only permit a string to be stored at
 462  * each position, which means that _if_ you put two identical
 463  * strings in any listbox then you MUST not assign them different
 464  * IDs and expect to get meaningful results back.
 465  */
 466 void dlg_listbox_addwithid(union control *ctrl, void *dlg,
 467                            char const *text, int id)
 468 {
 469     struct dlgparam *dp = (struct dlgparam *)dlg;
 470     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 471
 472     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 473            uc->ctrl->generic.type == CTRL_LISTBOX);
 474
 475     /*
 476      * This routine is long and complicated in both GTK 1 and 2,
 477      * and completely different. Sigh.
 478      */
 479     dp->flags |= FLAG_UPDATING_COMBO_LIST;
 480
 481 #if !GTK_CHECK_VERSION(2,4,0)
 482     if (uc->menu) {
 483         /*
 484          * List item in a drop-down (but non-combo) list. Tabs are
 485          * ignored; we just provide a standard menu item with the
 486          * text.
 487          */
 488         GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
 489
 490         gtk_container_add(GTK_CONTAINER(uc->menu), menuitem);
 491         gtk_widget_show(menuitem);
 492
 493         gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
 494                             GINT_TO_POINTER(id));
 495         gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
 496                            GTK_SIGNAL_FUNC(menuitem_activate), dp);
 497         goto done;
 498     }
 499     if (uc->list && uc->entry) {
 500         /*
 501          * List item in a combo-box list, which means the sensible
 502          * thing to do is make it a perfectly normal label. Hence
 503          * tabs are disregarded.
 504          */
 505         GtkWidget *listitem = gtk_list_item_new_with_label(text);
 506
 507         gtk_container_add(GTK_CONTAINER(uc->list), listitem);
 508         gtk_widget_show(listitem);
 509
 510         gtk_object_set_data(GTK_OBJECT(listitem), "user-data",
 511                             GINT_TO_POINTER(id));
 512         goto done;
 513     }
 514 #endif
 515 #if !GTK_CHECK_VERSION(2,0,0)
 516     if (uc->list) {
 517         /*
 518          * List item in a non-combo-box list box. We make all of
 519          * these Columns containing GtkLabels. This allows us to do
 520          * the nasty force_left hack irrespective of whether there
 521          * are tabs in the thing.
 522          */
 523         GtkWidget *listitem = gtk_list_item_new();
 524         GtkWidget *cols = columns_new(10);
 525         gint *percents;
 526         int i, ncols;
 527
 528         /* Count the tabs in the text, and hence determine # of columns. */
 529         ncols = 1;
 530         for (i = 0; text[i]; i++)
 531             if (text[i] == '\t')
 532                 ncols++;
 533
 534         assert(ncols <=
 535                (uc->ctrl->listbox.ncols ? uc->ctrl->listbox.ncols : 1));
 536         percents = snewn(ncols, gint);
 537         percents[ncols-1] = 100;
 538         for (i = 0; i < ncols-1; i++) {
 539             percents[i] = uc->ctrl->listbox.percentages[i];
 540             percents[ncols-1] -= percents[i];
 541         }
 542         columns_set_cols(COLUMNS(cols), ncols, percents);
 543         sfree(percents);
 544
 545         for (i = 0; i < ncols; i++) {
 546             int len = strcspn(text, "\t");
 547             char *dup = dupprintf("%.*s", len, text);
 548             GtkWidget *label;
 549
 550             text += len;
 551             if (*text) text++;
 552             label = gtk_label_new(dup);
 553             sfree(dup);
 554
 555             columns_add(COLUMNS(cols), label, i, 1);
 556             columns_force_left_align(COLUMNS(cols), label);
 557             gtk_widget_show(label);
 558         }
 559         gtk_container_add(GTK_CONTAINER(listitem), cols);
 560         gtk_widget_show(cols);
 561         gtk_container_add(GTK_CONTAINER(uc->list), listitem);
 562         gtk_widget_show(listitem);
 563
 564         if (ctrl->listbox.multisel) {
 565             gtk_signal_connect(GTK_OBJECT(listitem), "key_press_event",
 566                                GTK_SIGNAL_FUNC(listitem_multi_key), uc->adj);
 567         } else {
 568             gtk_signal_connect(GTK_OBJECT(listitem), "key_press_event",
 569                                GTK_SIGNAL_FUNC(listitem_single_key), uc->adj);
 570         }
 571         gtk_signal_connect(GTK_OBJECT(listitem), "focus_in_event",
 572                            GTK_SIGNAL_FUNC(widget_focus), dp);
 573         gtk_signal_connect(GTK_OBJECT(listitem), "button_press_event",
 574                            GTK_SIGNAL_FUNC(listitem_button_press), dp);
 575         gtk_signal_connect(GTK_OBJECT(listitem), "button_release_event",
 576                            GTK_SIGNAL_FUNC(listitem_button_release), dp);
 577         gtk_object_set_data(GTK_OBJECT(listitem), "user-data",
 578                             GINT_TO_POINTER(id));
 579         goto done;
 580     }
 581 #else
 582     if (uc->listmodel) {
 583         GtkTreeIter iter;
 584         int i, cols;
 585
 586         dp->flags |= FLAG_UPDATING_LISTBOX;/* inhibit drag-list update */
 587         gtk_list_store_append(uc->listmodel, &iter);
 588         dp->flags &= ~FLAG_UPDATING_LISTBOX;
 589         gtk_list_store_set(uc->listmodel, &iter, 0, id, -1);
 590
 591         /*
 592          * Now go through text and divide it into columns at the tabs,
 593          * as necessary.
 594          */
 595         cols = (uc->ctrl->generic.type == CTRL_LISTBOX ? ctrl->listbox.ncols : 1);
 596         cols = cols ? cols : 1;
 597         for (i = 0; i < cols; i++) {
 598             int collen = strcspn(text, "\t");
 599             char *tmpstr = snewn(collen+1, char);
 600             memcpy(tmpstr, text, collen);
 601             tmpstr[collen] = '\0';
 602             gtk_list_store_set(uc->listmodel, &iter, i+1, tmpstr, -1);
 603             sfree(tmpstr);
 604             text += collen;
 605             if (*text) text++;
 606         }
 607         goto done;
 608     }
 609 #endif
 610     assert(!"We shouldn't get here");
 611     done:
 612     dp->flags &= ~FLAG_UPDATING_COMBO_LIST;
 613 }
 614
 615 int dlg_listbox_getid(union control *ctrl, void *dlg, int index)
 616 {
 617     struct dlgparam *dp = (struct dlgparam *)dlg;
 618     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 619
 620     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 621            uc->ctrl->generic.type == CTRL_LISTBOX);
 622
 623 #if !GTK_CHECK_VERSION(2,4,0)
 624     if (uc->menu || uc->list) {
 625         GList *children;
 626         GtkObject *item;
 627
 628         children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
 629                                                         uc->list));
 630         item = GTK_OBJECT(g_list_nth_data(children, index));
 631         g_list_free(children);
 632
 633         return GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
 634                                                    "user-data"));
 635     }
 636 #endif
 637 #if GTK_CHECK_VERSION(2,0,0)
 638     if (uc->listmodel) {
 639         GtkTreePath *path;
 640         GtkTreeIter iter;
 641         int ret;
 642
 643         path = gtk_tree_path_new_from_indices(index, -1);
 644         gtk_tree_model_get_iter(GTK_TREE_MODEL(uc->listmodel), &iter, path);
 645         gtk_tree_model_get(GTK_TREE_MODEL(uc->listmodel), &iter, 0, &ret, -1);
 646         gtk_tree_path_free(path);
 647
 648         return ret;
 649     }
 650 #endif
 651     assert(!"We shouldn't get here");
 652     return -1;                         /* placate dataflow analysis */
 653 }
 654
 655 /* dlg_listbox_index returns <0 if no single element is selected. */
 656 int dlg_listbox_index(union control *ctrl, void *dlg)
 657 {
 658     struct dlgparam *dp = (struct dlgparam *)dlg;
 659     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 660
 661     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 662            uc->ctrl->generic.type == CTRL_LISTBOX);
 663
 664 #if !GTK_CHECK_VERSION(2,4,0)
 665     if (uc->menu || uc->list) {
 666         GList *children;
 667         GtkWidget *item, *activeitem;
 668         int i;
 669         int selected = -1;
 670
 671         if (uc->menu)
 672             activeitem = gtk_menu_get_active(GTK_MENU(uc->menu));
 673         else
 674             activeitem = NULL;         /* unnecessarily placate gcc */
 675
 676         children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
 677                                                         uc->list));
 678         for (i = 0; children!=NULL && (item = GTK_WIDGET(children->data))!=NULL;
 679              i++, children = children->next) {
 680             if (uc->menu ? activeitem == item :
 681                 GTK_WIDGET_STATE(item) == GTK_STATE_SELECTED) {
 682                 if (selected == -1)
 683                     selected = i;
 684                 else
 685                     selected = -2;
 686             }
 687         }
 688         g_list_free(children);
 689         return selected < 0 ? -1 : selected;
 690     }
 691 #else
 692     if (uc->combo) {
 693         /*
 694          * This API function already does the right thing in the
 695          * case of no current selection.
 696          */
 697         return gtk_combo_box_get_active(GTK_COMBO_BOX(uc->combo));
 698     }
 699 #endif
 700 #if GTK_CHECK_VERSION(2,0,0)
 701     if (uc->treeview) {
 702         GtkTreeSelection *treesel;
 703         GtkTreePath *path;
 704         GtkTreeModel *model;
 705         GList *sellist;
 706         gint *indices;
 707         int ret;
 708
 709         assert(uc->treeview != NULL);
 710         treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
 711
 712         if (gtk_tree_selection_count_selected_rows(treesel) != 1)
 713             return -1;
 714
 715         sellist = gtk_tree_selection_get_selected_rows(treesel, &model);
 716
 717         assert(sellist && sellist->data);
 718         path = sellist->data;
 719
 720         if (gtk_tree_path_get_depth(path) != 1) {
 721             ret = -1;
 722         } else {
 723             indices = gtk_tree_path_get_indices(path);
 724             if (!indices) {
 725                 ret = -1;
 726             } else {
 727                 ret = indices[0];
 728             }
 729         }
 730
 731         g_list_foreach(sellist, (GFunc)gtk_tree_path_free, NULL);
 732         g_list_free(sellist);
 733
 734         return ret;
 735     }
 736 #endif
 737     assert(!"We shouldn't get here");
 738     return -1;                         /* placate dataflow analysis */
 739 }
 740
 741 int dlg_listbox_issel(union control *ctrl, void *dlg, int index)
 742 {
 743     struct dlgparam *dp = (struct dlgparam *)dlg;
 744     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 745
 746     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 747            uc->ctrl->generic.type == CTRL_LISTBOX);
 748
 749 #if !GTK_CHECK_VERSION(2,4,0)
 750     if (uc->menu || uc->list) {
 751         GList *children;
 752         GtkWidget *item, *activeitem;
 753
 754         assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 755                uc->ctrl->generic.type == CTRL_LISTBOX);
 756         assert(uc->menu != NULL || uc->list != NULL);
 757
 758         children = gtk_container_children(GTK_CONTAINER(uc->menu ? uc->menu :
 759                                                         uc->list));
 760         item = GTK_WIDGET(g_list_nth_data(children, index));
 761         g_list_free(children);
 762
 763         if (uc->menu) {
 764             activeitem = gtk_menu_get_active(GTK_MENU(uc->menu));
 765             return item == activeitem;
 766         } else {
 767             return GTK_WIDGET_STATE(item) == GTK_STATE_SELECTED;
 768         }
 769     }
 770 #else
 771     if (uc->combo) {
 772         /*
 773          * This API function already does the right thing in the
 774          * case of no current selection.
 775          */
 776         return gtk_combo_box_get_active(GTK_COMBO_BOX(uc->combo)) == index;
 777     }
 778 #endif
 779 #if GTK_CHECK_VERSION(2,0,0)
 780     if (uc->treeview) {
 781         GtkTreeSelection *treesel;
 782         GtkTreePath *path;
 783         int ret;
 784
 785         assert(uc->treeview != NULL);
 786         treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
 787
 788         path = gtk_tree_path_new_from_indices(index, -1);
 789         ret = gtk_tree_selection_path_is_selected(treesel, path);
 790         gtk_tree_path_free(path);
 791
 792         return ret;
 793     }
 794 #endif
 795     assert(!"We shouldn't get here");
 796     return -1;                         /* placate dataflow analysis */
 797 }
 798
 799 void dlg_listbox_select(union control *ctrl, void *dlg, int index)
 800 {
 801     struct dlgparam *dp = (struct dlgparam *)dlg;
 802     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 803
 804     assert(uc->ctrl->generic.type == CTRL_EDITBOX ||
 805            uc->ctrl->generic.type == CTRL_LISTBOX);
 806
 807 #if !GTK_CHECK_VERSION(2,4,0)
 808     if (uc->optmenu) {
 809         gtk_option_menu_set_history(GTK_OPTION_MENU(uc->optmenu), index);
 810         return;
 811     }
 812     if (uc->list) {
 813         int nitems;
 814         GList *items;
 815         gdouble newtop, newbot;
 816
 817         gtk_list_select_item(GTK_LIST(uc->list), index);
 818
 819         /*
 820          * Scroll the list box if necessary to ensure the newly
 821          * selected item is visible.
 822          */
 823         items = gtk_container_children(GTK_CONTAINER(uc->list));
 824         nitems = g_list_length(items);
 825         if (nitems > 0) {
 826             int modified = FALSE;
 827             g_list_free(items);
 828             newtop = uc->adj->lower +
 829                 (uc->adj->upper - uc->adj->lower) * index / nitems;
 830             newbot = uc->adj->lower +
 831                 (uc->adj->upper - uc->adj->lower) * (index+1) / nitems;
 832             if (uc->adj->value > newtop) {
 833                 modified = TRUE;
 834                 uc->adj->value = newtop;
 835             } else if (uc->adj->value < newbot - uc->adj->page_size) {
 836                 modified = TRUE;
 837                 uc->adj->value = newbot - uc->adj->page_size;
 838             }
 839             if (modified)
 840                 gtk_adjustment_value_changed(uc->adj);
 841         }
 842         return;
 843     }
 844 #else
 845     if (uc->combo) {
 846         gtk_combo_box_set_active(GTK_COMBO_BOX(uc->combo), index);
 847         return;
 848     }
 849 #endif
 850 #if GTK_CHECK_VERSION(2,0,0)
 851     if (uc->treeview) {
 852         GtkTreeSelection *treesel;
 853         GtkTreePath *path;
 854
 855         treesel = gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview));
 856
 857         path = gtk_tree_path_new_from_indices(index, -1);
 858         gtk_tree_selection_select_path(treesel, path);
 859         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(uc->treeview),
 860                                      path, NULL, FALSE, 0.0, 0.0);
 861         gtk_tree_path_free(path);
 862         return;
 863     }
 864 #endif
 865     assert(!"We shouldn't get here");
 866 }
 867
 868 void dlg_text_set(union control *ctrl, void *dlg, char const *text)
 869 {
 870     struct dlgparam *dp = (struct dlgparam *)dlg;
 871     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 872
 873     assert(uc->ctrl->generic.type == CTRL_TEXT);
 874     assert(uc->text != NULL);
 875
 876     gtk_label_set_text(GTK_LABEL(uc->text), text);
 877 }
 878
 879 void dlg_label_change(union control *ctrl, void *dlg, char const *text)
 880 {
 881     struct dlgparam *dp = (struct dlgparam *)dlg;
 882     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 883
 884     switch (uc->ctrl->generic.type) {
 885       case CTRL_BUTTON:
 886         gtk_label_set_text(GTK_LABEL(uc->toplevel), text);
 887         shortcut_highlight(uc->toplevel, ctrl->button.shortcut);
 888         break;
 889       case CTRL_CHECKBOX:
 890         gtk_label_set_text(GTK_LABEL(uc->toplevel), text);
 891         shortcut_highlight(uc->toplevel, ctrl->checkbox.shortcut);
 892         break;
 893       case CTRL_RADIO:
 894         gtk_label_set_text(GTK_LABEL(uc->label), text);
 895         shortcut_highlight(uc->label, ctrl->radio.shortcut);
 896         break;
 897       case CTRL_EDITBOX:
 898         gtk_label_set_text(GTK_LABEL(uc->label), text);
 899         shortcut_highlight(uc->label, ctrl->editbox.shortcut);
 900         break;
 901       case CTRL_FILESELECT:
 902         gtk_label_set_text(GTK_LABEL(uc->label), text);
 903         shortcut_highlight(uc->label, ctrl->fileselect.shortcut);
 904         break;
 905       case CTRL_FONTSELECT:
 906         gtk_label_set_text(GTK_LABEL(uc->label), text);
 907         shortcut_highlight(uc->label, ctrl->fontselect.shortcut);
 908         break;
 909       case CTRL_LISTBOX:
 910         gtk_label_set_text(GTK_LABEL(uc->label), text);
 911         shortcut_highlight(uc->label, ctrl->listbox.shortcut);
 912         break;
 913       default:
 914         assert(!"This shouldn't happen");
 915         break;
 916     }
 917 }
 918
 919 void dlg_filesel_set(union control *ctrl, void *dlg, Filename fn)
 920 {
 921     struct dlgparam *dp = (struct dlgparam *)dlg;
 922     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 923     assert(uc->ctrl->generic.type == CTRL_FILESELECT);
 924     assert(uc->entry != NULL);
 925     gtk_entry_set_text(GTK_ENTRY(uc->entry), fn.path);
 926 }
 927
 928 void dlg_filesel_get(union control *ctrl, void *dlg, Filename *fn)
 929 {
 930     struct dlgparam *dp = (struct dlgparam *)dlg;
 931     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 932     assert(uc->ctrl->generic.type == CTRL_FILESELECT);
 933     assert(uc->entry != NULL);
 934     strncpy(fn->path, gtk_entry_get_text(GTK_ENTRY(uc->entry)),
 935             lenof(fn->path));
 936     fn->path[lenof(fn->path)-1] = '\0';
 937 }
 938
 939 void dlg_fontsel_set(union control *ctrl, void *dlg, FontSpec fs)
 940 {
 941     struct dlgparam *dp = (struct dlgparam *)dlg;
 942     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 943     assert(uc->ctrl->generic.type == CTRL_FONTSELECT);
 944     assert(uc->entry != NULL);
 945     gtk_entry_set_text(GTK_ENTRY(uc->entry), fs.name);
 946 }
 947
 948 void dlg_fontsel_get(union control *ctrl, void *dlg, FontSpec *fs)
 949 {
 950     struct dlgparam *dp = (struct dlgparam *)dlg;
 951     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 952     assert(uc->ctrl->generic.type == CTRL_FONTSELECT);
 953     assert(uc->entry != NULL);
 954     strncpy(fs->name, gtk_entry_get_text(GTK_ENTRY(uc->entry)),
 955             lenof(fs->name));
 956     fs->name[lenof(fs->name)-1] = '\0';
 957 }
 958
 959 /*
 960  * Bracketing a large set of updates in these two functions will
 961  * cause the front end (if possible) to delay updating the screen
 962  * until it's all complete, thus avoiding flicker.
 963  */
 964 void dlg_update_start(union control *ctrl, void *dlg)
 965 {
 966     /*
 967      * Apparently we can't do this at all in GTK. GtkCList supports
 968      * freeze and thaw, but not GtkList. Bah.
 969      */
 970 }
 971
 972 void dlg_update_done(union control *ctrl, void *dlg)
 973 {
 974     /*
 975      * Apparently we can't do this at all in GTK. GtkCList supports
 976      * freeze and thaw, but not GtkList. Bah.
 977      */
 978 }
 979
 980 void dlg_set_focus(union control *ctrl, void *dlg)
 981 {
 982     struct dlgparam *dp = (struct dlgparam *)dlg;
 983     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
 984
 985     switch (ctrl->generic.type) {
 986       case CTRL_CHECKBOX:
 987       case CTRL_BUTTON:
 988         /* Check boxes and buttons get the focus _and_ get toggled. */
 989         gtk_widget_grab_focus(uc->toplevel);
 990         break;
 991       case CTRL_FILESELECT:
 992       case CTRL_FONTSELECT:
 993       case CTRL_EDITBOX:
 994         if (uc->entry) {
 995             /* Anything containing an edit box gets that focused. */
 996             gtk_widget_grab_focus(uc->entry);
 997         }
 998 #if GTK_CHECK_VERSION(2,4,0)
 999         else if (uc->combo) {
1000             /* Failing that, there'll be a combo box. */
1001             gtk_widget_grab_focus(uc->combo);
1002         }
1003 #endif
1004         break;
1005       case CTRL_RADIO:
1006         /*
1007          * Radio buttons: we find the currently selected button and
1008          * focus it.
1009          */
1010         {
1011             int i;
1012             for (i = 0; i < ctrl->radio.nbuttons; i++)
1013                 if (gtk_toggle_button_get_active
1014                     (GTK_TOGGLE_BUTTON(uc->buttons[i]))) {
1015                     gtk_widget_grab_focus(uc->buttons[i]);
1016                 }
1017         }
1018         break;
1019       case CTRL_LISTBOX:
1020 #if !GTK_CHECK_VERSION(2,4,0)
1021         if (uc->optmenu) {
1022             gtk_widget_grab_focus(uc->optmenu);
1023             break;
1024         }
1025 #else
1026         if (uc->combo) {
1027             gtk_widget_grab_focus(uc->combo);
1028             break;
1029         }
1030 #endif
1031 #if !GTK_CHECK_VERSION(2,0,0)
1032         if (uc->list) {
1033             /*
1034              * For GTK-1 style list boxes, we tell it to focus one
1035              * of its children, which appears to do the Right
1036              * Thing.
1037              */
1038             gtk_container_focus(GTK_CONTAINER(uc->list), GTK_DIR_TAB_FORWARD);
1039             break;
1040         }
1041 #else
1042         if (uc->treeview) {
1043             gtk_widget_grab_focus(uc->treeview);
1044             break;
1045         }
1046 #endif
1047         assert(!"We shouldn't get here");
1048         break;
1049     }
1050 }
1051
1052 /*
1053  * During event processing, you might well want to give an error
1054  * indication to the user. dlg_beep() is a quick and easy generic
1055  * error; dlg_error() puts up a message-box or equivalent.
1056  */
1057 void dlg_beep(void *dlg)
1058 {
1059     gdk_beep();
1060 }
1061
1062 static void errmsg_button_clicked(GtkButton *button, gpointer data)
1063 {
1064     gtk_widget_destroy(GTK_WIDGET(data));
1065 }
1066
1067 static void set_transient_window_pos(GtkWidget *parent, GtkWidget *child)
1068 {
1069     gint x, y, w, h, dx, dy;
1070     GtkRequisition req;
1071     gtk_window_set_position(GTK_WINDOW(child), GTK_WIN_POS_NONE);
1072     gtk_widget_size_request(GTK_WIDGET(child), &req);
1073
1074     gdk_window_get_origin(GTK_WIDGET(parent)->window, &x, &y);
1075     gdk_window_get_size(GTK_WIDGET(parent)->window, &w, &h);
1076
1077     /*
1078      * One corner of the transient will be offset inwards, by 1/4
1079      * of the parent window's size, from the corresponding corner
1080      * of the parent window. The corner will be chosen so as to
1081      * place the transient closer to the centre of the screen; this
1082      * should avoid transients going off the edge of the screen on
1083      * a regular basis.
1084      */
1085     if (x + w/2 < gdk_screen_width() / 2)
1086         dx = x + w/4;                  /* work from left edges */
1087     else
1088         dx = x + 3*w/4 - req.width;    /* work from right edges */
1089     if (y + h/2 < gdk_screen_height() / 2)
1090         dy = y + h/4;                  /* work from top edges */
1091     else
1092         dy = y + 3*h/4 - req.height;   /* work from bottom edges */
1093     gtk_widget_set_uposition(GTK_WIDGET(child), dx, dy);
1094 }
1095
1096 void dlg_error_msg(void *dlg, char *msg)
1097 {
1098     struct dlgparam *dp = (struct dlgparam *)dlg;
1099     GtkWidget *window, *hbox, *text, *ok;
1100
1101     window = gtk_dialog_new();
1102     text = gtk_label_new(msg);
1103     gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
1104     hbox = gtk_hbox_new(FALSE, 0);
1105     gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
1106     gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
1107                        hbox, FALSE, FALSE, 20);
1108     gtk_widget_show(text);
1109     gtk_widget_show(hbox);
1110     gtk_window_set_title(GTK_WINDOW(window), "Error");
1111     gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
1112     ok = gtk_button_new_with_label("OK");
1113     gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
1114                      ok, FALSE, FALSE, 0);
1115     gtk_widget_show(ok);
1116     GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
1117     gtk_window_set_default(GTK_WINDOW(window), ok);
1118     gtk_signal_connect(GTK_OBJECT(ok), "clicked",
1119                        GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
1120     gtk_signal_connect(GTK_OBJECT(window), "destroy",
1121                        GTK_SIGNAL_FUNC(window_destroy), NULL);
1122     gtk_window_set_modal(GTK_WINDOW(window), TRUE);
1123     gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(dp->window));
1124     set_transient_window_pos(dp->window, window);
1125     gtk_widget_show(window);
1126     gtk_main();
1127 }
1128
1129 /*
1130  * This function signals to the front end that the dialog's
1131  * processing is completed, and passes an integer value (typically
1132  * a success status).
1133  */
1134 void dlg_end(void *dlg, int value)
1135 {
1136     struct dlgparam *dp = (struct dlgparam *)dlg;
1137     dp->retval = value;
1138     gtk_widget_destroy(dp->window);
1139 }
1140
1141 void dlg_refresh(union control *ctrl, void *dlg)
1142 {
1143     struct dlgparam *dp = (struct dlgparam *)dlg;
1144     struct uctrl *uc;
1145
1146     if (ctrl) {
1147         if (ctrl->generic.handler != NULL)
1148             ctrl->generic.handler(ctrl, dp, dp->data, EVENT_REFRESH);
1149     } else {
1150         int i;
1151
1152         for (i = 0; (uc = index234(dp->byctrl, i)) != NULL; i++) {
1153             assert(uc->ctrl != NULL);
1154             if (uc->ctrl->generic.handler != NULL)
1155                 uc->ctrl->generic.handler(uc->ctrl, dp,
1156                                           dp->data, EVENT_REFRESH);
1157         }
1158     }
1159 }
1160
1161 void dlg_coloursel_start(union control *ctrl, void *dlg, int r, int g, int b)
1162 {
1163     struct dlgparam *dp = (struct dlgparam *)dlg;
1164     struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
1165     gdouble cvals[4];
1166
1167     GtkWidget *coloursel =
1168         gtk_color_selection_dialog_new("Select a colour");
1169     GtkColorSelectionDialog *ccs = GTK_COLOR_SELECTION_DIALOG(coloursel);
1170
1171     dp->coloursel_result.ok = FALSE;
1172
1173     gtk_window_set_modal(GTK_WINDOW(coloursel), TRUE);
1174 #if GTK_CHECK_VERSION(2,0,0)
1175     gtk_color_selection_set_has_opacity_control(GTK_COLOR_SELECTION(ccs->colorsel), FALSE);
1176 #else
1177     gtk_color_selection_set_opacity(GTK_COLOR_SELECTION(ccs->colorsel), FALSE);
1178 #endif
1179     cvals[0] = r / 255.0;
1180     cvals[1] = g / 255.0;
1181     cvals[2] = b / 255.0;
1182     cvals[3] = 1.0;                    /* fully opaque! */
1183     gtk_color_selection_set_color(GTK_COLOR_SELECTION(ccs->colorsel), cvals);
1184
1185     gtk_object_set_data(GTK_OBJECT(ccs->ok_button), "user-data",
1186                         (gpointer)coloursel);
1187     gtk_object_set_data(GTK_OBJECT(ccs->cancel_button), "user-data",
1188                         (gpointer)coloursel);
1189     gtk_object_set_data(GTK_OBJECT(coloursel), "user-data", (gpointer)uc);
1190     gtk_signal_connect(GTK_OBJECT(ccs->ok_button), "clicked",
1191                        GTK_SIGNAL_FUNC(coloursel_ok), (gpointer)dp);
1192     gtk_signal_connect(GTK_OBJECT(ccs->cancel_button), "clicked",
1193                        GTK_SIGNAL_FUNC(coloursel_cancel), (gpointer)dp);
1194     gtk_signal_connect_object(GTK_OBJECT(ccs->ok_button), "clicked",
1195                               GTK_SIGNAL_FUNC(gtk_widget_destroy),
1196                               (gpointer)coloursel);
1197     gtk_signal_connect_object(GTK_OBJECT(ccs->cancel_button), "clicked",
1198                               GTK_SIGNAL_FUNC(gtk_widget_destroy),
1199                               (gpointer)coloursel);
1200     gtk_widget_show(coloursel);
1201 }
1202
1203 int dlg_coloursel_results(union control *ctrl, void *dlg,
1204                           int *r, int *g, int *b)
1205 {
1206     struct dlgparam *dp = (struct dlgparam *)dlg;
1207     if (dp->coloursel_result.ok) {
1208         *r = dp->coloursel_result.r;
1209         *g = dp->coloursel_result.g;
1210         *b = dp->coloursel_result.b;
1211         return 1;
1212     } else
1213         return 0;
1214 }
1215
1216 /* ----------------------------------------------------------------------
1217  * Signal handlers while the dialog box is active.
1218  */
1219
1220 static gboolean widget_focus(GtkWidget *widget, GdkEventFocus *event,
1221                              gpointer data)
1222 {
1223     struct dlgparam *dp = (struct dlgparam *)data;
1224     struct uctrl *uc = dlg_find_bywidget(dp, widget);
1225     union control *focus;
1226
1227     if (uc && uc->ctrl)
1228         focus = uc->ctrl;
1229     else
1230         focus = NULL;
1231
1232     if (focus != dp->currfocus) {
1233         dp->lastfocus = dp->currfocus;
1234         dp->currfocus = focus;
1235     }
1236
1237     return FALSE;
1238 }
1239
1240 static void button_clicked(GtkButton *button, gpointer data)
1241 {
1242     struct dlgparam *dp = (struct dlgparam *)data;
1243     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(button));
1244     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_ACTION);
1245 }
1246
1247 static void button_toggled(GtkToggleButton *tb, gpointer data)
1248 {
1249     struct dlgparam *dp = (struct dlgparam *)data;
1250     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(tb));
1251     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_VALCHANGE);
1252 }
1253
1254 static gboolean editbox_key(GtkWidget *widget, GdkEventKey *event,
1255                             gpointer data)
1256 {
1257     /*
1258      * GtkEntry has a nasty habit of eating the Return key, which
1259      * is unhelpful since it doesn't actually _do_ anything with it
1260      * (it calls gtk_widget_activate, but our edit boxes never need
1261      * activating). So I catch Return before GtkEntry sees it, and
1262      * pass it straight on to the parent widget. Effect: hitting
1263      * Return in an edit box will now activate the default button
1264      * in the dialog just like it will everywhere else.
1265      */
1266     if (event->keyval == GDK_Return && widget->parent != NULL) {
1267         gboolean return_val;
1268         gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
1269         gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
1270                                 event, &return_val);
1271         return return_val;
1272     }
1273     return FALSE;
1274 }
1275
1276 static void editbox_changed(GtkEditable *ed, gpointer data)
1277 {
1278     struct dlgparam *dp = (struct dlgparam *)data;
1279     if (!(dp->flags & FLAG_UPDATING_COMBO_LIST)) {
1280         struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(ed));
1281         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_VALCHANGE);
1282     }
1283 }
1284
1285 static gboolean editbox_lostfocus(GtkWidget *ed, GdkEventFocus *event,
1286                                   gpointer data)
1287 {
1288     struct dlgparam *dp = (struct dlgparam *)data;
1289     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(ed));
1290     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_REFRESH);
1291     return FALSE;
1292 }
1293
1294 #if !GTK_CHECK_VERSION(2,0,0)
1295
1296 /*
1297  * GTK 1 list box event handlers.
1298  */
1299
1300 static gboolean listitem_key(GtkWidget *item, GdkEventKey *event,
1301                              gpointer data, int multiple)
1302 {
1303     GtkAdjustment *adj = GTK_ADJUSTMENT(data);
1304
1305     if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up ||
1306         event->keyval == GDK_Down || event->keyval == GDK_KP_Down ||
1307         event->keyval == GDK_Page_Up || event->keyval == GDK_KP_Page_Up ||
1308         event->keyval == GDK_Page_Down || event->keyval == GDK_KP_Page_Down) {
1309         /*
1310          * Up, Down, PgUp or PgDn have been pressed on a ListItem
1311          * in a list box. So, if the list box is single-selection:
1312          *
1313          *  - if the list item in question isn't already selected,
1314          *    we simply select it.
1315          *  - otherwise, we find the next one (or next
1316          *    however-far-away) in whichever direction we're going,
1317          *    and select that.
1318          *     + in this case, we must also fiddle with the
1319          *       scrollbar to ensure the newly selected item is
1320          *       actually visible.
1321          *
1322          * If it's multiple-selection, we do all of the above
1323          * except actually selecting anything, so we move the focus
1324          * and fiddle the scrollbar to follow it.
1325          */
1326         GtkWidget *list = item->parent;
1327
1328         gtk_signal_emit_stop_by_name(GTK_OBJECT(item), "key_press_event");
1329
1330         if (!multiple &&
1331             GTK_WIDGET_STATE(item) != GTK_STATE_SELECTED) {
1332                 gtk_list_select_child(GTK_LIST(list), item);
1333         } else {
1334             int direction =
1335                 (event->keyval==GDK_Up || event->keyval==GDK_KP_Up ||
1336                  event->keyval==GDK_Page_Up || event->keyval==GDK_KP_Page_Up)
1337                 ? -1 : +1;
1338             int step =
1339                 (event->keyval==GDK_Page_Down ||
1340                  event->keyval==GDK_KP_Page_Down ||
1341                  event->keyval==GDK_Page_Up || event->keyval==GDK_KP_Page_Up)
1342                 ? 2 : 1;
1343             int i, n;
1344             GList *children, *chead;
1345
1346             chead = children = gtk_container_children(GTK_CONTAINER(list));
1347
1348             n = g_list_length(children);
1349
1350             if (step == 2) {
1351                 /*
1352                  * Figure out how many list items to a screenful,
1353                  * and adjust the step appropriately.
1354                  */
1355                 step = 0.5 + adj->page_size * n / (adj->upper - adj->lower);
1356                 step--;                /* go by one less than that */
1357             }
1358
1359             i = 0;
1360             while (children != NULL) {
1361                 if (item == children->data)
1362                     break;
1363                 children = children->next;
1364                 i++;
1365             }
1366
1367             while (step > 0) {
1368                 if (direction < 0 && i > 0)
1369                     children = children->prev, i--;
1370                 else if (direction > 0 && i < n-1)
1371                     children = children->next, i++;
1372                 step--;
1373             }
1374
1375             if (children && children->data) {
1376                 if (!multiple)
1377                     gtk_list_select_child(GTK_LIST(list),
1378                                           GTK_WIDGET(children->data));
1379                 gtk_widget_grab_focus(GTK_WIDGET(children->data));
1380                 gtk_adjustment_clamp_page
1381                     (adj,
1382                      adj->lower + (adj->upper-adj->lower) * i / n,
1383                      adj->lower + (adj->upper-adj->lower) * (i+1) / n);
1384             }
1385
1386             g_list_free(chead);
1387         }
1388         return TRUE;
1389     }
1390
1391     return FALSE;
1392 }
1393
1394 static gboolean listitem_single_key(GtkWidget *item, GdkEventKey *event,
1395                                     gpointer data)
1396 {
1397     return listitem_key(item, event, data, FALSE);
1398 }
1399
1400 static gboolean listitem_multi_key(GtkWidget *item, GdkEventKey *event,
1401                                    gpointer data)
1402 {
1403     return listitem_key(item, event, data, TRUE);
1404 }
1405
1406 static gboolean listitem_button_press(GtkWidget *item, GdkEventButton *event,
1407                                       gpointer data)
1408 {
1409     struct dlgparam *dp = (struct dlgparam *)data;
1410     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(item));
1411     switch (event->type) {
1412     default:
1413     case GDK_BUTTON_PRESS: uc->nclicks = 1; break;
1414     case GDK_2BUTTON_PRESS: uc->nclicks = 2; break;
1415     case GDK_3BUTTON_PRESS: uc->nclicks = 3; break;
1416     }
1417     return FALSE;
1418 }
1419
1420 static gboolean listitem_button_release(GtkWidget *item, GdkEventButton *event,
1421                                         gpointer data)
1422 {
1423     struct dlgparam *dp = (struct dlgparam *)data;
1424     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(item));
1425     if (uc->nclicks>1) {
1426         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_ACTION);
1427         return TRUE;
1428     }
1429     return FALSE;
1430 }
1431
1432 static void list_selchange(GtkList *list, gpointer data)
1433 {
1434     struct dlgparam *dp = (struct dlgparam *)data;
1435     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(list));
1436     if (!uc) return;
1437     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
1438 }
1439
1440 static void draglist_move(struct dlgparam *dp, struct uctrl *uc, int direction)
1441 {
1442     int index = dlg_listbox_index(uc->ctrl, dp);
1443     GList *children = gtk_container_children(GTK_CONTAINER(uc->list));
1444     GtkWidget *child;
1445
1446     if ((index < 0) ||
1447         (index == 0 && direction < 0) ||
1448         (index == g_list_length(children)-1 && direction > 0)) {
1449         gdk_beep();
1450         return;
1451     }
1452
1453     child = g_list_nth_data(children, index);
1454     gtk_widget_ref(child);
1455     gtk_list_clear_items(GTK_LIST(uc->list), index, index+1);
1456     g_list_free(children);
1457
1458     children = NULL;
1459     children = g_list_append(children, child);
1460     gtk_list_insert_items(GTK_LIST(uc->list), children, index + direction);
1461     gtk_list_select_item(GTK_LIST(uc->list), index + direction);
1462     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_VALCHANGE);
1463 }
1464
1465 static void draglist_up(GtkButton *button, gpointer data)
1466 {
1467     struct dlgparam *dp = (struct dlgparam *)data;
1468     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(button));
1469     draglist_move(dp, uc, -1);
1470 }
1471
1472 static void draglist_down(GtkButton *button, gpointer data)
1473 {
1474     struct dlgparam *dp = (struct dlgparam *)data;
1475     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(button));
1476     draglist_move(dp, uc, +1);
1477 }
1478
1479 #else /* !GTK_CHECK_VERSION(2,0,0) */
1480
1481 /*
1482  * GTK 2 list box event handlers.
1483  */
1484
1485 static void listbox_doubleclick(GtkTreeView *treeview, GtkTreePath *path,
1486                                 GtkTreeViewColumn *column, gpointer data)
1487 {
1488     struct dlgparam *dp = (struct dlgparam *)data;
1489     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(treeview));
1490     if (uc)
1491         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_ACTION);
1492 }
1493
1494 static void listbox_selchange(GtkTreeSelection *treeselection,
1495                               gpointer data)
1496 {
1497     struct dlgparam *dp = (struct dlgparam *)data;
1498     GtkTreeView *tree = gtk_tree_selection_get_tree_view(treeselection);
1499     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(tree));
1500     if (uc)
1501         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
1502 }
1503
1504 struct draglist_valchange_ctx {
1505     struct uctrl *uc;
1506     struct dlgparam *dp;
1507 };
1508
1509 static gboolean draglist_valchange(gpointer data)
1510 {
1511     struct draglist_valchange_ctx *ctx =
1512         (struct draglist_valchange_ctx *)data;
1513
1514     ctx->uc->ctrl->generic.handler(ctx->uc->ctrl, ctx->dp,
1515                                    ctx->dp->data, EVENT_VALCHANGE);
1516
1517     sfree(ctx);
1518
1519     return FALSE;
1520 }
1521
1522 static void listbox_reorder(GtkTreeModel *treemodel, GtkTreePath *path,
1523                             GtkTreeIter *iter, gpointer data)
1524 {
1525     struct dlgparam *dp = (struct dlgparam *)data;
1526     gpointer tree;
1527     struct uctrl *uc;
1528
1529     if (dp->flags & FLAG_UPDATING_LISTBOX)
1530         return;                        /* not a user drag operation */
1531
1532     tree = g_object_get_data(G_OBJECT(treemodel), "user-data");
1533     uc = dlg_find_bywidget(dp, GTK_WIDGET(tree));
1534     if (uc) {
1535         /*
1536          * We should cause EVENT_VALCHANGE on the list box, now
1537          * that its rows have been reordered. However, the GTK 2
1538          * docs say that at the point this signal is received the
1539          * new row might not have actually been filled in yet.
1540          *
1541          * (So what smegging use is it then, eh? Don't suppose it
1542          * occurred to you at any point that letting the
1543          * application know _after_ the reordering was compelete
1544          * might be helpful to someone?)
1545          *
1546          * To get round this, I schedule an idle function, which I
1547          * hope won't be called until the main event loop is
1548          * re-entered after the drag-and-drop handler has finished
1549          * furtling with the list store.
1550          */
1551         struct draglist_valchange_ctx *ctx =
1552             snew(struct draglist_valchange_ctx);
1553         ctx->uc = uc;
1554         ctx->dp = dp;
1555         g_idle_add(draglist_valchange, ctx);
1556     }
1557 }
1558
1559 #endif /* !GTK_CHECK_VERSION(2,0,0) */
1560
1561 #if !GTK_CHECK_VERSION(2,4,0)
1562
1563 static void menuitem_activate(GtkMenuItem *item, gpointer data)
1564 {
1565     struct dlgparam *dp = (struct dlgparam *)data;
1566     GtkWidget *menushell = GTK_WIDGET(item)->parent;
1567     gpointer optmenu = gtk_object_get_data(GTK_OBJECT(menushell), "user-data");
1568     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(optmenu));
1569     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
1570 }
1571
1572 #else
1573
1574 static void droplist_selchange(GtkComboBox *combo, gpointer data)
1575 {
1576     struct dlgparam *dp = (struct dlgparam *)data;
1577     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(combo));
1578     if (uc)
1579         uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_SELCHANGE);
1580 }
1581
1582 #endif /* !GTK_CHECK_VERSION(2,4,0) */
1583
1584 static void filesel_ok(GtkButton *button, gpointer data)
1585 {
1586     /* struct dlgparam *dp = (struct dlgparam *)data; */
1587     gpointer filesel = gtk_object_get_data(GTK_OBJECT(button), "user-data");
1588     struct uctrl *uc = gtk_object_get_data(GTK_OBJECT(filesel), "user-data");
1589     const char *name = gtk_file_selection_get_filename
1590         (GTK_FILE_SELECTION(filesel));
1591     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
1592 }
1593
1594 static void fontsel_ok(GtkButton *button, gpointer data)
1595 {
1596     /* struct dlgparam *dp = (struct dlgparam *)data; */
1597
1598 #if !GTK_CHECK_VERSION(2,0,0)
1599
1600     gpointer fontsel = gtk_object_get_data(GTK_OBJECT(button), "user-data");
1601     struct uctrl *uc = gtk_object_get_data(GTK_OBJECT(fontsel), "user-data");
1602     const char *name = gtk_font_selection_dialog_get_font_name
1603         (GTK_FONT_SELECTION_DIALOG(fontsel));
1604     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
1605
1606 #else
1607
1608     unifontsel *fontsel = (unifontsel *)gtk_object_get_data
1609         (GTK_OBJECT(button), "user-data");
1610     struct uctrl *uc = (struct uctrl *)fontsel->user_data;
1611     char *name = unifontsel_get_name(fontsel);
1612     assert(name);              /* should always be ok after OK pressed */
1613     gtk_entry_set_text(GTK_ENTRY(uc->entry), name);
1614     sfree(name);
1615
1616 #endif
1617 }
1618
1619 static void coloursel_ok(GtkButton *button, gpointer data)
1620 {
1621     struct dlgparam *dp = (struct dlgparam *)data;
1622     gpointer coloursel = gtk_object_get_data(GTK_OBJECT(button), "user-data");
1623     struct uctrl *uc = gtk_object_get_data(GTK_OBJECT(coloursel), "user-data");
1624     gdouble cvals[4];
1625     gtk_color_selection_get_color
1626         (GTK_COLOR_SELECTION(GTK_COLOR_SELECTION_DIALOG(coloursel)->colorsel),
1627          cvals);
1628     dp->coloursel_result.r = (int) (255 * cvals[0]);
1629     dp->coloursel_result.g = (int) (255 * cvals[1]);
1630     dp->coloursel_result.b = (int) (255 * cvals[2]);
1631     dp->coloursel_result.ok = TRUE;
1632     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_CALLBACK);
1633 }
1634
1635 static void coloursel_cancel(GtkButton *button, gpointer data)
1636 {
1637     struct dlgparam *dp = (struct dlgparam *)data;
1638     gpointer coloursel = gtk_object_get_data(GTK_OBJECT(button), "user-data");
1639     struct uctrl *uc = gtk_object_get_data(GTK_OBJECT(coloursel), "user-data");
1640     dp->coloursel_result.ok = FALSE;
1641     uc->ctrl->generic.handler(uc->ctrl, dp, dp->data, EVENT_CALLBACK);
1642 }
1643
1644 static void filefont_clicked(GtkButton *button, gpointer data)
1645 {
1646     struct dlgparam *dp = (struct dlgparam *)data;
1647     struct uctrl *uc = dlg_find_bywidget(dp, GTK_WIDGET(button));
1648
1649     if (uc->ctrl->generic.type == CTRL_FILESELECT) {
1650         GtkWidget *filesel =
1651             gtk_file_selection_new(uc->ctrl->fileselect.title);
1652         gtk_window_set_modal(GTK_WINDOW(filesel), TRUE);
1653         gtk_object_set_data
1654             (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "user-data",
1655              (gpointer)filesel);
1656         gtk_object_set_data(GTK_OBJECT(filesel), "user-data", (gpointer)uc);
1657         gtk_signal_connect
1658             (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
1659              GTK_SIGNAL_FUNC(filesel_ok), (gpointer)dp);
1660         gtk_signal_connect_object
1661             (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->ok_button), "clicked",
1662              GTK_SIGNAL_FUNC(gtk_widget_destroy), (gpointer)filesel);
1663         gtk_signal_connect_object
1664             (GTK_OBJECT(GTK_FILE_SELECTION(filesel)->cancel_button), "clicked",
1665              GTK_SIGNAL_FUNC(gtk_widget_destroy), (gpointer)filesel);
1666         gtk_widget_show(filesel);
1667     }
1668
1669     if (uc->ctrl->generic.type == CTRL_FONTSELECT) {
1670         const gchar *fontname = gtk_entry_get_text(GTK_ENTRY(uc->entry));
1671
1672 #if !GTK_CHECK_VERSION(2,0,0)
1673
1674         /*
1675          * Use the GTK 1 standard font selector.
1676          */
1677
1678         gchar *spacings[] = { "c", "m", NULL };
1679         GtkWidget *fontsel =
1680             gtk_font_selection_dialog_new("Select a font");
1681         gtk_window_set_modal(GTK_WINDOW(fontsel), TRUE);
1682         gtk_font_selection_dialog_set_filter
1683             (GTK_FONT_SELECTION_DIALOG(fontsel),
1684              GTK_FONT_FILTER_BASE, GTK_FONT_ALL,
1685              NULL, NULL, NULL, NULL, spacings, NULL);
1686         if (!gtk_font_selection_dialog_set_font_name
1687             (GTK_FONT_SELECTION_DIALOG(fontsel), fontname)) {
1688             /*
1689              * If the font name wasn't found as it was, try opening
1690              * it and extracting its FONT property. This should
1691              * have the effect of mapping short aliases into true
1692              * XLFDs.
1693              */
1694             GdkFont *font = gdk_font_load(fontname);
1695             if (font) {
1696                 XFontStruct *xfs = GDK_FONT_XFONT(font);
1697                 Display *disp = GDK_FONT_XDISPLAY(font);
1698                 Atom fontprop = XInternAtom(disp, "FONT", False);
1699                 unsigned long ret;
1700                 gdk_font_ref(font);
1701                 if (XGetFontProperty(xfs, fontprop, &ret)) {
1702                     char *name = XGetAtomName(disp, (Atom)ret);
1703                     if (name)
1704                         gtk_font_selection_dialog_set_font_name
1705                         (GTK_FONT_SELECTION_DIALOG(fontsel), name);
1706                 }
1707                 gdk_font_unref(font);
1708             }
1709         }
1710         gtk_object_set_data
1711             (GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
1712              "user-data", (gpointer)fontsel);
1713         gtk_object_set_data(GTK_OBJECT(fontsel), "user-data", (gpointer)uc);
1714         gtk_signal_connect
1715             (GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
1716              "clicked", GTK_SIGNAL_FUNC(fontsel_ok), (gpointer)dp);
1717         gtk_signal_connect_object
1718             (GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
1719              "clicked", GTK_SIGNAL_FUNC(gtk_widget_destroy),
1720              (gpointer)fontsel);
1721         gtk_signal_connect_object
1722             (GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->cancel_button),
1723              "clicked", GTK_SIGNAL_FUNC(gtk_widget_destroy),
1724              (gpointer)fontsel);
1725         gtk_widget_show(fontsel);
1726
1727 #else /* !GTK_CHECK_VERSION(2,0,0) */
1728
1729         /*
1730          * Use the unifontsel code provided in gtkfont.c.
1731          */
1732
1733         unifontsel *fontsel = unifontsel_new("Select a font");
1734
1735         gtk_window_set_modal(fontsel->window, TRUE);
1736         unifontsel_set_name(fontsel, fontname);
1737
1738         gtk_object_set_data(GTK_OBJECT(fontsel->ok_button),
1739                             "user-data", (gpointer)fontsel);
1740         fontsel->user_data = uc;
1741         gtk_signal_connect(GTK_OBJECT(fontsel->ok_button), "clicked",
1742                            GTK_SIGNAL_FUNC(fontsel_ok), (gpointer)dp);
1743         gtk_signal_connect_object(GTK_OBJECT(fontsel->ok_button), "clicked",
1744                                   GTK_SIGNAL_FUNC(unifontsel_destroy),
1745                                   (gpointer)fontsel);
1746         gtk_signal_connect_object(GTK_OBJECT(fontsel->cancel_button),"clicked",
1747                                   GTK_SIGNAL_FUNC(unifontsel_destroy),
1748                                   (gpointer)fontsel);
1749
1750         gtk_widget_show(GTK_WIDGET(fontsel->window));
1751
1752 #endif /* !GTK_CHECK_VERSION(2,0,0) */
1753
1754     }
1755 }
1756
1757 static void label_sizealloc(GtkWidget *widget, GtkAllocation *alloc,
1758                             gpointer data)
1759 {
1760     struct dlgparam *dp = (struct dlgparam *)data;
1761     struct uctrl *uc = dlg_find_bywidget(dp, widget);
1762
1763     gtk_widget_set_usize(uc->text, alloc->width, -1);
1764     gtk_label_set_text(GTK_LABEL(uc->text), uc->ctrl->generic.label);
1765     gtk_signal_disconnect(GTK_OBJECT(uc->text), uc->textsig);
1766 }
1767
1768 /* ----------------------------------------------------------------------
1769  * This function does the main layout work: it reads a controlset,
1770  * it creates the relevant GTK controls, and returns a GtkWidget
1771  * containing the result. (This widget might be a title of some
1772  * sort, it might be a Columns containing many controls, or it
1773  * might be a GtkFrame containing a Columns; whatever it is, it's
1774  * definitely a GtkWidget and should probably be added to a
1775  * GtkVbox.)
1776  *
1777  * `win' is required for setting the default button. If it is
1778  * non-NULL, all buttons created will be default-capable (so they
1779  * have extra space round them for the default highlight).
1780  */
1781 GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
1782                         struct controlset *s, GtkWindow *win)
1783 {
1784     Columns *cols;
1785     GtkWidget *ret;
1786     int i;
1787
1788     if (!s->boxname && s->boxtitle) {
1789         /* This controlset is a panel title. */
1790         return gtk_label_new(s->boxtitle);
1791     }
1792
1793     /*
1794      * Otherwise, we expect to be laying out actual controls, so
1795      * we'll start by creating a Columns for the purpose.
1796      */
1797     cols = COLUMNS(columns_new(4));
1798     ret = GTK_WIDGET(cols);
1799     gtk_widget_show(ret);
1800
1801     /*
1802      * Create a containing frame if we have a box name.
1803      */
1804     if (*s->boxname) {
1805         ret = gtk_frame_new(s->boxtitle);   /* NULL is valid here */
1806         gtk_container_set_border_width(GTK_CONTAINER(cols), 4);
1807         gtk_container_add(GTK_CONTAINER(ret), GTK_WIDGET(cols));
1808         gtk_widget_show(ret);
1809     }
1810
1811     /*
1812      * Now iterate through the controls themselves, create them,
1813      * and add them to the Columns.
1814      */
1815     for (i = 0; i < s->ncontrols; i++) {
1816         union control *ctrl = s->ctrls[i];
1817         struct uctrl *uc;
1818         int left = FALSE;
1819         GtkWidget *w = NULL;
1820
1821         switch (ctrl->generic.type) {
1822           case CTRL_COLUMNS:
1823             {
1824                 static const int simplecols[1] = { 100 };
1825                 columns_set_cols(cols, ctrl->columns.ncols,
1826                                  (ctrl->columns.percentages ?
1827                                   ctrl->columns.percentages : simplecols));
1828             }
1829             continue;                  /* no actual control created */
1830           case CTRL_TABDELAY:
1831             {
1832                 struct uctrl *uc = dlg_find_byctrl(dp, ctrl->tabdelay.ctrl);
1833                 if (uc)
1834                     columns_taborder_last(cols, uc->toplevel);
1835             }
1836             continue;                  /* no actual control created */
1837         }
1838
1839         uc = snew(struct uctrl);
1840         uc->ctrl = ctrl;
1841         uc->privdata = NULL;
1842         uc->privdata_needs_free = FALSE;
1843         uc->buttons = NULL;
1844         uc->entry = NULL;
1845 #if !GTK_CHECK_VERSION(2,4,0)
1846         uc->list = uc->menu = uc->optmenu = NULL;
1847 #else
1848         uc->combo = NULL;
1849 #endif
1850 #if GTK_CHECK_VERSION(2,0,0)
1851         uc->treeview = NULL;
1852         uc->listmodel = NULL;
1853 #endif
1854         uc->button = uc->text = NULL;
1855         uc->label = NULL;
1856         uc->nclicks = 0;
1857
1858         switch (ctrl->generic.type) {
1859           case CTRL_BUTTON:
1860             w = gtk_button_new_with_label(ctrl->generic.label);
1861             if (win) {
1862                 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
1863                 if (ctrl->button.isdefault)
1864                     gtk_window_set_default(win, w);
1865                 if (ctrl->button.iscancel)
1866                     dp->cancelbutton = w;
1867             }
1868             gtk_signal_connect(GTK_OBJECT(w), "clicked",
1869                                GTK_SIGNAL_FUNC(button_clicked), dp);
1870             gtk_signal_connect(GTK_OBJECT(w), "focus_in_event",
1871                                GTK_SIGNAL_FUNC(widget_focus), dp);
1872             shortcut_add(scs, GTK_BIN(w)->child, ctrl->button.shortcut,
1873                          SHORTCUT_UCTRL, uc);
1874             break;
1875           case CTRL_CHECKBOX:
1876             w = gtk_check_button_new_with_label(ctrl->generic.label);
1877             gtk_signal_connect(GTK_OBJECT(w), "toggled",
1878                                GTK_SIGNAL_FUNC(button_toggled), dp);
1879             gtk_signal_connect(GTK_OBJECT(w), "focus_in_event",
1880                                GTK_SIGNAL_FUNC(widget_focus), dp);
1881             shortcut_add(scs, GTK_BIN(w)->child, ctrl->checkbox.shortcut,
1882                          SHORTCUT_UCTRL, uc);
1883             left = TRUE;
1884             break;
1885           case CTRL_RADIO:
1886             /*
1887              * Radio buttons get to go inside their own Columns, no
1888              * matter what.
1889              */
1890             {
1891                 gint i, *percentages;
1892                 GSList *group;
1893
1894                 w = columns_new(0);
1895                 if (ctrl->generic.label) {
1896                     GtkWidget *label = gtk_label_new(ctrl->generic.label);
1897                     columns_add(COLUMNS(w), label, 0, 1);
1898                     columns_force_left_align(COLUMNS(w), label);
1899                     gtk_widget_show(label);
1900                     shortcut_add(scs, label, ctrl->radio.shortcut,
1901                                  SHORTCUT_UCTRL, uc);
1902                     uc->label = label;
1903                 }
1904                 percentages = g_new(gint, ctrl->radio.ncolumns);
1905                 for (i = 0; i < ctrl->radio.ncolumns; i++) {
1906                     percentages[i] =
1907                         ((100 * (i+1) / ctrl->radio.ncolumns) -
1908                          100 * i / ctrl->radio.ncolumns);
1909                 }
1910                 columns_set_cols(COLUMNS(w), ctrl->radio.ncolumns,
1911                                  percentages);
1912                 g_free(percentages);
1913                 group = NULL;
1914
1915                 uc->nbuttons = ctrl->radio.nbuttons;
1916                 uc->buttons = snewn(uc->nbuttons, GtkWidget *);
1917
1918                 for (i = 0; i < ctrl->radio.nbuttons; i++) {
1919                     GtkWidget *b;
1920                     gint colstart;
1921
1922                     b = (gtk_radio_button_new_with_label
1923                          (group, ctrl->radio.buttons[i]));
1924                     uc->buttons[i] = b;
1925                     group = gtk_radio_button_group(GTK_RADIO_BUTTON(b));
1926                     colstart = i % ctrl->radio.ncolumns;
1927                     columns_add(COLUMNS(w), b, colstart,
1928                                 (i == ctrl->radio.nbuttons-1 ?
1929                                  ctrl->radio.ncolumns - colstart : 1));
1930                     columns_force_left_align(COLUMNS(w), b);
1931                     gtk_widget_show(b);
1932                     gtk_signal_connect(GTK_OBJECT(b), "toggled",
1933                                        GTK_SIGNAL_FUNC(button_toggled), dp);
1934                     gtk_signal_connect(GTK_OBJECT(b), "focus_in_event",
1935                                        GTK_SIGNAL_FUNC(widget_focus), dp);
1936                     if (ctrl->radio.shortcuts) {
1937                         shortcut_add(scs, GTK_BIN(b)->child,
1938                                      ctrl->radio.shortcuts[i],
1939                                      SHORTCUT_UCTRL, uc);
1940                     }
1941                 }
1942             }
1943             break;
1944           case CTRL_EDITBOX:
1945             {
1946                 GtkRequisition req;
1947                 GtkWidget *signalobject;
1948
1949                 if (ctrl->editbox.has_list) {
1950 #if !GTK_CHECK_VERSION(2,4,0)
1951                     /*
1952                      * GTK 1 combo box.
1953                      */
1954                     w = gtk_combo_new();
1955                     gtk_combo_set_value_in_list(GTK_COMBO(w), FALSE, TRUE);
1956                     uc->entry = GTK_COMBO(w)->entry;
1957                     uc->list = GTK_COMBO(w)->list;
1958                     signalobject = uc->entry;
1959 #else
1960                     /*
1961                      * GTK 2 combo box.
1962                      */
1963                     uc->listmodel = gtk_list_store_new(2, G_TYPE_INT,
1964                                                        G_TYPE_STRING);
1965                     w = gtk_combo_box_entry_new_with_model
1966                         (GTK_TREE_MODEL(uc->listmodel), 1);
1967                     /* We cannot support password combo boxes. */
1968                     assert(!ctrl->editbox.password);
1969                     uc->combo = w;
1970                     signalobject = uc->combo;
1971 #endif
1972                 } else {
1973                     w = gtk_entry_new();
1974                     if (ctrl->editbox.password)
1975                         gtk_entry_set_visibility(GTK_ENTRY(w), FALSE);
1976                     uc->entry = w;
1977                     signalobject = w;
1978                 }
1979                 uc->entrysig =
1980                     gtk_signal_connect(GTK_OBJECT(signalobject), "changed",
1981                                        GTK_SIGNAL_FUNC(editbox_changed), dp);
1982                 gtk_signal_connect(GTK_OBJECT(signalobject), "key_press_event",
1983                                    GTK_SIGNAL_FUNC(editbox_key), dp);
1984                 gtk_signal_connect(GTK_OBJECT(signalobject), "focus_in_event",
1985                                    GTK_SIGNAL_FUNC(widget_focus), dp);
1986                 gtk_signal_connect(GTK_OBJECT(signalobject), "focus_out_event",
1987                                    GTK_SIGNAL_FUNC(editbox_lostfocus), dp);
1988                 gtk_signal_connect(GTK_OBJECT(signalobject), "focus_out_event",
1989                                    GTK_SIGNAL_FUNC(editbox_lostfocus), dp);
1990                 /*
1991                  * Edit boxes, for some strange reason, have a minimum
1992                  * width of 150 in GTK 1.2. We don't want this - we'd
1993                  * rather the edit boxes acquired their natural width
1994                  * from the column layout of the rest of the box.
1995                  *
1996                  * Also, while we're here, we'll squirrel away the
1997                  * edit box height so we can use that to centre its
1998                  * label vertically beside it.
1999                  */
2000                 gtk_widget_size_request(w, &req);
2001                 gtk_widget_set_usize(w, 10, req.height);
2002
2003                 if (ctrl->generic.label) {
2004                     GtkWidget *label, *container;
2005
2006                     label = gtk_label_new(ctrl->generic.label);
2007
2008                     shortcut_add(scs, label, ctrl->editbox.shortcut,
2009                                  SHORTCUT_FOCUS, uc->entry);
2010
2011                     container = columns_new(4);
2012                     if (ctrl->editbox.percentwidth == 100) {
2013                         columns_add(COLUMNS(container), label, 0, 1);
2014                         columns_force_left_align(COLUMNS(container), label);
2015                         columns_add(COLUMNS(container), w, 0, 1);
2016                     } else {
2017                         gint percentages[2];
2018                         percentages[1] = ctrl->editbox.percentwidth;
2019                         percentages[0] = 100 - ctrl->editbox.percentwidth;
2020                         columns_set_cols(COLUMNS(container), 2, percentages);
2021                         columns_add(COLUMNS(container), label, 0, 1);
2022                         columns_force_left_align(COLUMNS(container), label);
2023                         columns_add(COLUMNS(container), w, 1, 1);
2024                         /* Centre the label vertically. */
2025                         gtk_widget_set_usize(label, -1, req.height);
2026                         gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
2027                     }
2028                     gtk_widget_show(label);
2029                     gtk_widget_show(w);
2030
2031                     w = container;
2032                     uc->label = label;
2033                 }
2034             }
2035             break;
2036           case CTRL_FILESELECT:
2037           case CTRL_FONTSELECT:
2038             {
2039                 GtkWidget *ww;
2040                 GtkRequisition req;
2041                 char *browsebtn =
2042                     (ctrl->generic.type == CTRL_FILESELECT ?
2043                      "Browse..." : "Change...");
2044
2045                 gint percentages[] = { 75, 25 };
2046                 w = columns_new(4);
2047                 columns_set_cols(COLUMNS(w), 2, percentages);
2048
2049                 if (ctrl->generic.label) {
2050                     ww = gtk_label_new(ctrl->generic.label);
2051                     columns_add(COLUMNS(w), ww, 0, 2);
2052                     columns_force_left_align(COLUMNS(w), ww);
2053                     gtk_widget_show(ww);
2054                     shortcut_add(scs, ww,
2055                                  (ctrl->generic.type == CTRL_FILESELECT ?
2056                                   ctrl->fileselect.shortcut :
2057                                   ctrl->fontselect.shortcut),
2058                                  SHORTCUT_UCTRL, uc);
2059                     uc->label = ww;
2060                 }
2061
2062                 uc->entry = ww = gtk_entry_new();
2063                 gtk_widget_size_request(ww, &req);
2064                 gtk_widget_set_usize(ww, 10, req.height);
2065                 columns_add(COLUMNS(w), ww, 0, 1);
2066                 gtk_widget_show(ww);
2067
2068                 uc->button = ww = gtk_button_new_with_label(browsebtn);
2069                 columns_add(COLUMNS(w), ww, 1, 1);
2070                 gtk_widget_show(ww);
2071
2072                 gtk_signal_connect(GTK_OBJECT(uc->entry), "key_press_event",
2073                                    GTK_SIGNAL_FUNC(editbox_key), dp);
2074                 uc->entrysig =
2075                     gtk_signal_connect(GTK_OBJECT(uc->entry), "changed",
2076                                        GTK_SIGNAL_FUNC(editbox_changed), dp);
2077                 gtk_signal_connect(GTK_OBJECT(uc->entry), "focus_in_event",
2078                                    GTK_SIGNAL_FUNC(widget_focus), dp);
2079                 gtk_signal_connect(GTK_OBJECT(uc->button), "focus_in_event",
2080                                    GTK_SIGNAL_FUNC(widget_focus), dp);
2081                 gtk_signal_connect(GTK_OBJECT(ww), "clicked",
2082                                    GTK_SIGNAL_FUNC(filefont_clicked), dp);
2083             }
2084             break;
2085           case CTRL_LISTBOX:
2086
2087 #if GTK_CHECK_VERSION(2,0,0)
2088             /*
2089              * First construct the list data store, with the right
2090              * number of columns.
2091              */
2092 #  if !GTK_CHECK_VERSION(2,4,0)
2093             /* (For GTK 2.0 to 2.3, we do this for full listboxes only,
2094              * because combo boxes are still done the old GTK1 way.) */
2095             if (ctrl->listbox.height > 0)
2096 #  endif
2097             {
2098                 GType *types;
2099                 int i;
2100                 int cols;
2101
2102                 cols = ctrl->listbox.ncols;
2103                 cols = cols ? cols : 1;
2104                 types = snewn(1 + cols, GType);
2105
2106                 types[0] = G_TYPE_INT;
2107                 for (i = 0; i < cols; i++)
2108                     types[i+1] = G_TYPE_STRING;
2109
2110                 uc->listmodel = gtk_list_store_newv(1 + cols, types);
2111
2112                 sfree(types);
2113             }
2114 #endif
2115
2116             /*
2117              * See if it's a drop-down list (non-editable combo
2118              * box).
2119              */
2120             if (ctrl->listbox.height == 0) {
2121 #if !GTK_CHECK_VERSION(2,4,0)
2122                 /*
2123                  * GTK1 and early-GTK2 option-menu style of
2124                  * drop-down list.
2125                  */
2126                 uc->optmenu = w = gtk_option_menu_new();
2127                 uc->menu = gtk_menu_new();
2128                 gtk_option_menu_set_menu(GTK_OPTION_MENU(w), uc->menu);
2129                 gtk_object_set_data(GTK_OBJECT(uc->menu), "user-data",
2130                                     (gpointer)uc->optmenu);
2131                 gtk_signal_connect(GTK_OBJECT(uc->optmenu), "focus_in_event",
2132                                    GTK_SIGNAL_FUNC(widget_focus), dp);
2133 #else
2134                 /*
2135                  * Late-GTK2 style using a GtkComboBox.
2136                  */
2137                 GtkCellRenderer *cr;
2138
2139                 /*
2140                  * Create a non-editable GtkComboBox (that is, not
2141                  * its subclass GtkComboBoxEntry).
2142                  */
2143                 w = gtk_combo_box_new_with_model
2144                     (GTK_TREE_MODEL(uc->listmodel));
2145                 uc->combo = w;
2146
2147                 /*
2148                  * Tell it how to render a list item (i.e. which
2149                  * column to look at in the list model).
2150                  */
2151                 cr = gtk_cell_renderer_text_new();
2152                 gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(w), cr, TRUE);
2153                 gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(w), cr,
2154                                                "text", 1, NULL);
2155
2156                 /*
2157                  * And tell it to notify us when the selection
2158                  * changes.
2159                  */
2160                 g_signal_connect(G_OBJECT(w), "changed",
2161                                  G_CALLBACK(droplist_selchange), dp);
2162 #endif
2163             } else {
2164 #if !GTK_CHECK_VERSION(2,0,0)
2165                 /*
2166                  * GTK1-style full list box.
2167                  */
2168                 uc->list = gtk_list_new();
2169                 if (ctrl->listbox.multisel == 2) {
2170                     gtk_list_set_selection_mode(GTK_LIST(uc->list),
2171                                                 GTK_SELECTION_EXTENDED);
2172                 } else if (ctrl->listbox.multisel == 1) {
2173                     gtk_list_set_selection_mode(GTK_LIST(uc->list),
2174                                                 GTK_SELECTION_MULTIPLE);
2175                 } else {
2176                     gtk_list_set_selection_mode(GTK_LIST(uc->list),
2177                                                 GTK_SELECTION_SINGLE);
2178                 }
2179                 w = gtk_scrolled_window_new(NULL, NULL);
2180                 gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(w),
2181                                                       uc->list);
2182                 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(w),
2183                                                GTK_POLICY_NEVER,
2184                                                GTK_POLICY_AUTOMATIC);
2185                 uc->adj = gtk_scrolled_window_get_vadjustment
2186                     (GTK_SCROLLED_WINDOW(w));
2187
2188                 gtk_widget_show(uc->list);
2189                 gtk_signal_connect(GTK_OBJECT(uc->list), "selection-changed",
2190                                    GTK_SIGNAL_FUNC(list_selchange), dp);
2191                 gtk_signal_connect(GTK_OBJECT(uc->list), "focus_in_event",
2192                                    GTK_SIGNAL_FUNC(widget_focus), dp);
2193
2194                 /*
2195                  * Adjust the height of the scrolled window to the
2196                  * minimum given by the height parameter.
2197                  *
2198                  * This piece of guesswork is a horrid hack based
2199                  * on looking inside the GTK 1.2 sources
2200                  * (specifically gtkviewport.c, which appears to be
2201                  * the widget which provides the border around the
2202                  * scrolling area). Anyone lets me know how I can
2203                  * do this in a way which isn't at risk from GTK
2204                  * upgrades, I'd be grateful.
2205                  */
2206                 {
2207                     int edge;
2208                     edge = GTK_WIDGET(uc->list)->style->klass->ythickness;
2209                     gtk_widget_set_usize(w, 10,
2210                                          2*edge + (ctrl->listbox.height *
2211                                                    get_listitemheight(w)));
2212                 }
2213
2214                 if (ctrl->listbox.draglist) {
2215                     /*
2216                      * GTK doesn't appear to make it easy to
2217                      * implement a proper draggable list; so
2218                      * instead I'm just going to have to put an Up
2219                      * and a Down button to the right of the actual
2220                      * list box. Ah well.
2221                      */
2222                     GtkWidget *cols, *button;
2223                     static const gint percentages[2] = { 80, 20 };
2224
2225                     cols = columns_new(4);
2226                     columns_set_cols(COLUMNS(cols), 2, percentages);
2227                     columns_add(COLUMNS(cols), w, 0, 1);
2228                     gtk_widget_show(w);
2229                     button = gtk_button_new_with_label("Up");
2230                     columns_add(COLUMNS(cols), button, 1, 1);
2231                     gtk_widget_show(button);
2232                     gtk_signal_connect(GTK_OBJECT(button), "clicked",
2233                                        GTK_SIGNAL_FUNC(draglist_up), dp);
2234                     gtk_signal_connect(GTK_OBJECT(button), "focus_in_event",
2235                                        GTK_SIGNAL_FUNC(widget_focus), dp);
2236                     button = gtk_button_new_with_label("Down");
2237                     columns_add(COLUMNS(cols), button, 1, 1);
2238                     gtk_widget_show(button);
2239                     gtk_signal_connect(GTK_OBJECT(button), "clicked",
2240                                        GTK_SIGNAL_FUNC(draglist_down), dp);
2241                     gtk_signal_connect(GTK_OBJECT(button), "focus_in_event",
2242                                        GTK_SIGNAL_FUNC(widget_focus), dp);
2243
2244                     w = cols;
2245                 }
2246 #else
2247                 /*
2248                  * GTK2 treeview-based full list box.
2249                  */
2250                 GtkTreeSelection *sel;
2251
2252                 /*
2253                  * Create the list box itself, its columns, and
2254                  * its containing scrolled window.
2255                  */
2256                 w = gtk_tree_view_new_with_model
2257                     (GTK_TREE_MODEL(uc->listmodel));
2258                 g_object_set_data(G_OBJECT(uc->listmodel), "user-data",
2259                                   (gpointer)w);
2260                 gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(w), FALSE);
2261                 sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(w));
2262                 gtk_tree_selection_set_mode
2263                     (sel, ctrl->listbox.multisel ? GTK_SELECTION_MULTIPLE :
2264                      GTK_SELECTION_SINGLE);
2265                 uc->treeview = w;
2266                 gtk_signal_connect(GTK_OBJECT(w), "row-activated",
2267                                    GTK_SIGNAL_FUNC(listbox_doubleclick), dp);
2268                 g_signal_connect(G_OBJECT(sel), "changed",
2269                                  G_CALLBACK(listbox_selchange), dp);
2270
2271                 if (ctrl->listbox.draglist) {
2272                     gtk_tree_view_set_reorderable(GTK_TREE_VIEW(w), TRUE);
2273                     g_signal_connect(G_OBJECT(uc->listmodel), "row-inserted",
2274                                      G_CALLBACK(listbox_reorder), dp);
2275                 }
2276
2277                 {
2278                     int i;
2279                     int cols;
2280
2281                     cols = ctrl->listbox.ncols;
2282                     cols = cols ? cols : 1;
2283                     for (i = 0; i < cols; i++) {
2284                         GtkTreeViewColumn *column;
2285                         /*
2286                          * It appears that GTK 2 doesn't leave us any
2287                          * particularly sensible way to honour the
2288                          * "percentages" specification in the ctrl
2289                          * structure.
2290                          */
2291                         column = gtk_tree_view_column_new_with_attributes
2292                             ("heading", gtk_cell_renderer_text_new(),
2293                              "text", i+1, (char *)NULL);
2294                         gtk_tree_view_column_set_sizing
2295                             (column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
2296                         gtk_tree_view_append_column(GTK_TREE_VIEW(w), column);
2297                     }
2298                 }
2299
2300                 {
2301                     GtkWidget *scroll;
2302
2303                     scroll = gtk_scrolled_window_new(NULL, NULL);
2304                     gtk_scrolled_window_set_shadow_type
2305                         (GTK_SCROLLED_WINDOW(scroll), GTK_SHADOW_IN);
2306                     gtk_widget_show(w);
2307                     gtk_container_add(GTK_CONTAINER(scroll), w);
2308                     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
2309                                                    GTK_POLICY_AUTOMATIC,
2310                                                    GTK_POLICY_ALWAYS);
2311                     gtk_widget_set_size_request
2312                         (scroll, -1,
2313                          ctrl->listbox.height * get_listitemheight(w));
2314
2315                     w = scroll;
2316                 }
2317 #endif
2318             }
2319
2320             if (ctrl->generic.label) {
2321                 GtkWidget *label, *container;
2322                 GtkRequisition req;
2323
2324                 label = gtk_label_new(ctrl->generic.label);
2325
2326                 shortcut_add(scs, label, ctrl->listbox.shortcut,
2327                              SHORTCUT_FOCUS, w);
2328
2329                 container = columns_new(4);
2330                 if (ctrl->listbox.percentwidth == 100) {
2331                     columns_add(COLUMNS(container), label, 0, 1);
2332                     columns_force_left_align(COLUMNS(container), label);
2333                     columns_add(COLUMNS(container), w, 0, 1);
2334                 } else {
2335                     gint percentages[2];
2336                     percentages[1] = ctrl->listbox.percentwidth;
2337                     percentages[0] = 100 - ctrl->listbox.percentwidth;
2338                     columns_set_cols(COLUMNS(container), 2, percentages);
2339                     columns_add(COLUMNS(container), label, 0, 1);
2340                     columns_force_left_align(COLUMNS(container), label);
2341                     columns_add(COLUMNS(container), w, 1, 1);
2342                     /* Centre the label vertically. */
2343                     gtk_widget_size_request(w, &req);
2344                     gtk_widget_set_usize(label, -1, req.height);
2345                     gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
2346                 }
2347                 gtk_widget_show(label);
2348                 gtk_widget_show(w);
2349
2350                 w = container;
2351                 uc->label = label;
2352             }
2353
2354             break;
2355           case CTRL_TEXT:
2356             /*
2357              * Wrapping text widgets don't sit well with the GTK
2358              * layout model, in which widgets state a minimum size
2359              * and the whole window then adjusts to the smallest
2360              * size it can sensibly take given its contents. A
2361              * wrapping text widget _has_ no clear minimum size;
2362              * instead it has a range of possibilities. It can be
2363              * one line deep but 2000 wide, or two lines deep and
2364              * 1000 pixels, or three by 867, or four by 500 and so
2365              * on. It can be as short as you like provided you
2366              * don't mind it being wide, or as narrow as you like
2367              * provided you don't mind it being tall.
2368              *
2369              * Therefore, it fits very badly into the layout model.
2370              * Hence the only thing to do is pick a width and let
2371              * it choose its own number of lines. To do this I'm
2372              * going to cheat a little. All new wrapping text
2373              * widgets will be created with a minimal text content
2374              * "X"; then, after the rest of the dialog box is set
2375              * up and its size calculated, the text widgets will be
2376              * told their width and given their real text, which
2377              * will cause the size to be recomputed in the y
2378              * direction (because many of them will expand to more
2379              * than one line).
2380              */
2381             uc->text = w = gtk_label_new("X");
2382             gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.0);
2383             gtk_label_set_line_wrap(GTK_LABEL(w), TRUE);
2384             uc->textsig =
2385                 gtk_signal_connect(GTK_OBJECT(w), "size-allocate",
2386                                    GTK_SIGNAL_FUNC(label_sizealloc), dp);
2387             break;
2388         }
2389
2390         assert(w != NULL);
2391
2392         columns_add(cols, w,
2393                     COLUMN_START(ctrl->generic.column),
2394                     COLUMN_SPAN(ctrl->generic.column));
2395         if (left)
2396             columns_force_left_align(cols, w);
2397         gtk_widget_show(w);
2398
2399         uc->toplevel = w;
2400         dlg_add_uctrl(dp, uc);
2401     }
2402
2403     return ret;
2404 }
2405
2406 struct selparam {
2407     struct dlgparam *dp;
2408     GtkNotebook *panels;
2409     GtkWidget *panel;
2410 #if !GTK_CHECK_VERSION(2,0,0)
2411     GtkWidget *treeitem;
2412 #else
2413     int depth;
2414     GtkTreePath *treepath;
2415 #endif
2416     struct Shortcuts shortcuts;
2417 };
2418
2419 #if GTK_CHECK_VERSION(2,0,0)
2420 static void treeselection_changed(GtkTreeSelection *treeselection,
2421                                   gpointer data)
2422 {
2423     struct selparam *sps = (struct selparam *)data, *sp;
2424     GtkTreeModel *treemodel;
2425     GtkTreeIter treeiter;
2426     gint spindex;
2427     gint page_num;
2428
2429     if (!gtk_tree_selection_get_selected(treeselection, &treemodel, &treeiter))
2430         return;
2431
2432     gtk_tree_model_get(treemodel, &treeiter, TREESTORE_PARAMS, &spindex, -1);
2433     sp = &sps[spindex];
2434
2435     page_num = gtk_notebook_page_num(sp->panels, sp->panel);
2436     gtk_notebook_set_page(sp->panels, page_num);
2437
2438     dlg_refresh(NULL, sp->dp);
2439
2440     sp->dp->shortcuts = &sp->shortcuts;
2441 }
2442 #else
2443 static void treeitem_sel(GtkItem *item, gpointer data)
2444 {
2445     struct selparam *sp = (struct selparam *)data;
2446     gint page_num;
2447
2448     page_num = gtk_notebook_page_num(sp->panels, sp->panel);
2449     gtk_notebook_set_page(sp->panels, page_num);
2450
2451     dlg_refresh(NULL, sp->dp);
2452
2453     sp->dp->shortcuts = &sp->shortcuts;
2454     sp->dp->currtreeitem = sp->treeitem;
2455 }
2456 #endif
2457
2458 static void window_destroy(GtkWidget *widget, gpointer data)
2459 {
2460     gtk_main_quit();
2461 }
2462
2463 #if !GTK_CHECK_VERSION(2,0,0)
2464 static int tree_grab_focus(struct dlgparam *dp)
2465 {
2466     int i, f;
2467
2468     /*
2469      * See if any of the treeitems has the focus.
2470      */
2471     f = -1;
2472     for (i = 0; i < dp->ntreeitems; i++)
2473         if (GTK_WIDGET_HAS_FOCUS(dp->treeitems[i])) {
2474             f = i;
2475             break;
2476         }
2477
2478     if (f >= 0)
2479         return FALSE;
2480     else {
2481         gtk_widget_grab_focus(dp->currtreeitem);
2482         return TRUE;
2483     }
2484 }
2485
2486 gint tree_focus(GtkContainer *container, GtkDirectionType direction,
2487                 gpointer data)
2488 {
2489     struct dlgparam *dp = (struct dlgparam *)data;
2490
2491     gtk_signal_emit_stop_by_name(GTK_OBJECT(container), "focus");
2492     /*
2493      * If there's a focused treeitem, we return FALSE to cause the
2494      * focus to move on to some totally other control. If not, we
2495      * focus the selected one.
2496      */
2497     return tree_grab_focus(dp);
2498 }
2499 #endif
2500
2501 int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
2502 {
2503     struct dlgparam *dp = (struct dlgparam *)data;
2504
2505     if (event->keyval == GDK_Escape && dp->cancelbutton) {
2506         gtk_signal_emit_by_name(GTK_OBJECT(dp->cancelbutton), "clicked");
2507         return TRUE;
2508     }
2509
2510     if ((event->state & GDK_MOD1_MASK) &&
2511         (unsigned char)event->string[0] > 0 &&
2512         (unsigned char)event->string[0] <= 127) {
2513         int schr = (unsigned char)event->string[0];
2514         struct Shortcut *sc = &dp->shortcuts->sc[schr];
2515
2516         switch (sc->action) {
2517           case SHORTCUT_TREE:
2518 #if GTK_CHECK_VERSION(2,0,0)
2519             gtk_widget_grab_focus(sc->widget);
2520 #else
2521             tree_grab_focus(dp);
2522 #endif
2523             break;
2524           case SHORTCUT_FOCUS:
2525             gtk_widget_grab_focus(sc->widget);
2526             break;
2527           case SHORTCUT_UCTRL:
2528             /*
2529              * We must do something sensible with a uctrl.
2530              * Precisely what this is depends on the type of
2531              * control.
2532              */
2533             switch (sc->uc->ctrl->generic.type) {
2534               case CTRL_CHECKBOX:
2535               case CTRL_BUTTON:
2536                 /* Check boxes and buttons get the focus _and_ get toggled. */
2537                 gtk_widget_grab_focus(sc->uc->toplevel);
2538                 gtk_signal_emit_by_name(GTK_OBJECT(sc->uc->toplevel),
2539                                         "clicked");
2540                 break;
2541               case CTRL_FILESELECT:
2542               case CTRL_FONTSELECT:
2543                 /* File/font selectors have their buttons pressed (ooer),
2544                  * and focus transferred to the edit box. */
2545                 gtk_signal_emit_by_name(GTK_OBJECT(sc->uc->button),
2546                                         "clicked");
2547                 gtk_widget_grab_focus(sc->uc->entry);
2548                 break;
2549               case CTRL_RADIO:
2550                 /*
2551                  * Radio buttons are fun, because they have
2552                  * multiple shortcuts. We must find whether the
2553                  * activated shortcut is the shortcut for the whole
2554                  * group, or for a particular button. In the former
2555                  * case, we find the currently selected button and
2556                  * focus it; in the latter, we focus-and-click the
2557                  * button whose shortcut was pressed.
2558                  */
2559                 if (schr == sc->uc->ctrl->radio.shortcut) {
2560                     int i;
2561                     for (i = 0; i < sc->uc->ctrl->radio.nbuttons; i++)
2562                         if (gtk_toggle_button_get_active
2563                             (GTK_TOGGLE_BUTTON(sc->uc->buttons[i]))) {
2564                             gtk_widget_grab_focus(sc->uc->buttons[i]);
2565                         }
2566                 } else if (sc->uc->ctrl->radio.shortcuts) {
2567                     int i;
2568                     for (i = 0; i < sc->uc->ctrl->radio.nbuttons; i++)
2569                         if (schr == sc->uc->ctrl->radio.shortcuts[i]) {
2570                             gtk_widget_grab_focus(sc->uc->buttons[i]);
2571                             gtk_signal_emit_by_name
2572                                 (GTK_OBJECT(sc->uc->buttons[i]), "clicked");
2573                         }
2574                 }
2575                 break;
2576               case CTRL_LISTBOX:
2577
2578 #if !GTK_CHECK_VERSION(2,4,0)
2579                 if (sc->uc->optmenu) {
2580                     GdkEventButton bev;
2581                     gint returnval;
2582
2583                     gtk_widget_grab_focus(sc->uc->optmenu);
2584                     /* Option menus don't work using the "clicked" signal.
2585                      * We need to manufacture a button press event :-/ */
2586                     bev.type = GDK_BUTTON_PRESS;
2587                     bev.button = 1;
2588                     gtk_signal_emit_by_name(GTK_OBJECT(sc->uc->optmenu),
2589                                             "button_press_event",
2590                                             &bev, &returnval);
2591                     break;
2592                 }
2593 #else
2594                 if (sc->uc->combo) {
2595                     gtk_widget_grab_focus(sc->uc->combo);
2596                     gtk_combo_box_popup(GTK_COMBO_BOX(sc->uc->combo));
2597                     break;
2598                 }
2599 #endif
2600 #if !GTK_CHECK_VERSION(2,0,0)
2601                 if (sc->uc->list) {
2602                     /*
2603                      * For GTK-1 style list boxes, we tell it to
2604                      * focus one of its children, which appears to
2605                      * do the Right Thing.
2606                      */
2607                     gtk_container_focus(GTK_CONTAINER(sc->uc->list),
2608                                         GTK_DIR_TAB_FORWARD);
2609                     break;
2610                 }
2611 #else
2612                 if (sc->uc->treeview) {
2613                     gtk_widget_grab_focus(sc->uc->treeview);
2614                     break;
2615                 }
2616 #endif
2617                 assert(!"We shouldn't get here");
2618                 break;
2619             }
2620             break;
2621         }
2622     }
2623
2624     return FALSE;
2625 }
2626
2627 #if !GTK_CHECK_VERSION(2,0,0)
2628 int tree_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
2629 {
2630     struct dlgparam *dp = (struct dlgparam *)data;
2631
2632     if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up ||
2633         event->keyval == GDK_Down || event->keyval == GDK_KP_Down) {
2634         int dir, i, j = -1;
2635         for (i = 0; i < dp->ntreeitems; i++)
2636             if (widget == dp->treeitems[i])
2637                 break;
2638         if (i < dp->ntreeitems) {
2639             if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up)
2640                 dir = -1;
2641             else
2642                 dir = +1;
2643
2644             while (1) {
2645                 i += dir;
2646                 if (i < 0 || i >= dp->ntreeitems)
2647                     break;             /* nothing in that dir to select */
2648                 /*
2649                  * Determine if this tree item is visible.
2650                  */
2651                 {
2652                     GtkWidget *w = dp->treeitems[i];
2653                     int vis = TRUE;
2654                     while (w && (GTK_IS_TREE_ITEM(w) || GTK_IS_TREE(w))) {
2655                         if (!GTK_WIDGET_VISIBLE(w)) {
2656                             vis = FALSE;
2657                             break;
2658                         }
2659                         w = w->parent;
2660                     }
2661                     if (vis) {
2662                         j = i;         /* got one */
2663                         break;
2664                     }
2665                 }
2666             }
2667         }
2668         gtk_signal_emit_stop_by_name(GTK_OBJECT(widget),
2669                                      "key_press_event");
2670         if (j >= 0) {
2671             gtk_signal_emit_by_name(GTK_OBJECT(dp->treeitems[j]), "toggle");
2672             gtk_widget_grab_focus(dp->treeitems[j]);
2673         }
2674         return TRUE;
2675     }
2676
2677     /*
2678      * It's nice for Left and Right to expand and collapse tree
2679      * branches.
2680      */
2681     if (event->keyval == GDK_Left || event->keyval == GDK_KP_Left) {
2682         gtk_signal_emit_stop_by_name(GTK_OBJECT(widget),
2683                                      "key_press_event");
2684         gtk_tree_item_collapse(GTK_TREE_ITEM(widget));
2685         return TRUE;
2686     }
2687     if (event->keyval == GDK_Right || event->keyval == GDK_KP_Right) {
2688         gtk_signal_emit_stop_by_name(GTK_OBJECT(widget),
2689                                      "key_press_event");
2690         gtk_tree_item_expand(GTK_TREE_ITEM(widget));
2691         return TRUE;
2692     }
2693
2694     return FALSE;
2695 }
2696 #endif
2697
2698 static void shortcut_highlight(GtkWidget *labelw, int chr)
2699 {
2700     GtkLabel *label = GTK_LABEL(labelw);
2701     gchar *currstr, *pattern;
2702     int i;
2703
2704     gtk_label_get(label, &currstr);
2705     for (i = 0; currstr[i]; i++)
2706         if (tolower((unsigned char)currstr[i]) == chr) {
2707             GtkRequisition req;
2708
2709             pattern = dupprintf("%*s_", i, "");
2710
2711             gtk_widget_size_request(GTK_WIDGET(label), &req);
2712             gtk_label_set_pattern(label, pattern);
2713             gtk_widget_set_usize(GTK_WIDGET(label), -1, req.height);
2714
2715             sfree(pattern);
2716             break;
2717         }
2718 }
2719
2720 void shortcut_add(struct Shortcuts *scs, GtkWidget *labelw,
2721                   int chr, int action, void *ptr)
2722 {
2723     if (chr == NO_SHORTCUT)
2724         return;
2725
2726     chr = tolower((unsigned char)chr);
2727
2728     assert(scs->sc[chr].action == SHORTCUT_EMPTY);
2729
2730     scs->sc[chr].action = action;
2731
2732     if (action == SHORTCUT_FOCUS) {
2733         scs->sc[chr].uc = NULL;
2734         scs->sc[chr].widget = (GtkWidget *)ptr;
2735     } else {
2736         scs->sc[chr].widget = NULL;
2737         scs->sc[chr].uc = (struct uctrl *)ptr;
2738     }
2739
2740     shortcut_highlight(labelw, chr);
2741 }
2742
2743 int get_listitemheight(GtkWidget *w)
2744 {
2745 #if !GTK_CHECK_VERSION(2,0,0)
2746     GtkWidget *listitem = gtk_list_item_new_with_label("foo");
2747     GtkRequisition req;
2748     gtk_widget_size_request(listitem, &req);
2749     gtk_object_sink(GTK_OBJECT(listitem));
2750     return req.height;
2751 #else
2752     int height;
2753     GtkCellRenderer *cr = gtk_cell_renderer_text_new();
2754     gtk_cell_renderer_get_size(cr, w, NULL, NULL, NULL, NULL, &height);
2755     g_object_ref(G_OBJECT(cr));
2756     gtk_object_sink(GTK_OBJECT(cr));
2757     g_object_unref(G_OBJECT(cr));
2758     return height;
2759 #endif
2760 }
2761
2762 void set_dialog_action_area(GtkDialog *dlg, GtkWidget *w)
2763 {
2764 #if !GTK_CHECK_VERSION(2,0,0)
2765
2766     /*
2767      * In GTK 1, laying out the buttons at the bottom of the
2768      * configuration box is nice and easy, because a GtkDialog's
2769      * action_area is a GtkHBox which stretches to cover the full
2770      * width of the dialog. So we just put our Columns widget
2771      * straight into that hbox, and it ends up just where we want
2772      * it.
2773      */
2774     gtk_box_pack_start(GTK_BOX(dlg->action_area), w, TRUE, TRUE, 0);
2775
2776 #else
2777     /*
2778      * In GTK 2, the action area is now a GtkHButtonBox and its
2779      * layout behaviour seems to be different: it doesn't stretch
2780      * to cover the full width of the window, but instead finds its
2781      * own preferred width and right-aligns that within the window.
2782      * This isn't what we want, because we have both left-aligned
2783      * and right-aligned buttons coming out of the above call to
2784      * layout_ctrls(), and right-aligning the whole thing will
2785      * result in the former being centred and looking weird.
2786      *
2787      * So instead we abandon the dialog's action area completely:
2788      * we gtk_widget_hide() it in the below code, and we also call
2789      * gtk_dialog_set_has_separator() to remove the separator above
2790      * it. We then insert our own action area into the end of the
2791      * dialog's main vbox, and add our own separator above that.
2792      *
2793      * (Ideally, if we were a native GTK app, we would use the
2794      * GtkHButtonBox's _own_ innate ability to support one set of
2795      * buttons being right-aligned and one left-aligned. But to do
2796      * that here, we would have to either (a) pick apart our cross-
2797      * platform layout structures and treat them specially for this
2798      * particular set of controls, which would be painful, or else
2799      * (b) develop a special and simpler cross-platform
2800      * representation for these particular controls, and introduce
2801      * special-case code into all the _other_ platforms to handle
2802      * it. Neither appeals. Therefore, I regretfully discard the
2803      * GTKHButtonBox and go it alone.)
2804      */
2805
2806     GtkWidget *align;
2807     align = gtk_alignment_new(0, 0, 1, 1);
2808     gtk_container_add(GTK_CONTAINER(align), w);
2809     /*
2810      * The purpose of this GtkAlignment is to provide padding
2811      * around the buttons. The padding we use is twice the padding
2812      * used in our GtkColumns, because we nest two GtkColumns most
2813      * of the time (one separating the tree view from the main
2814      * controls, and another for the main controls themselves).
2815      */
2816 #if GTK_CHECK_VERSION(2,4,0)
2817     gtk_alignment_set_padding(GTK_ALIGNMENT(align), 8, 8, 8, 8);
2818 #endif
2819     gtk_widget_show(align);
2820     gtk_box_pack_end(GTK_BOX(dlg->vbox), align, FALSE, TRUE, 0);
2821     w = gtk_hseparator_new();
2822     gtk_box_pack_end(GTK_BOX(dlg->vbox), w, FALSE, TRUE, 0);
2823     gtk_widget_show(w);
2824     gtk_widget_hide(dlg->action_area);
2825     gtk_dialog_set_has_separator(dlg, FALSE);
2826 #endif
2827 }
2828
2829 int do_config_box(const char *title, Config *cfg, int midsession,
2830                   int protcfginfo)
2831 {
2832     GtkWidget *window, *hbox, *vbox, *cols, *label,
2833         *tree, *treescroll, *panels, *panelvbox;
2834     int index, level;
2835     struct controlbox *ctrlbox;
2836     char *path;
2837 #if GTK_CHECK_VERSION(2,0,0)
2838     GtkTreeStore *treestore;
2839     GtkCellRenderer *treerenderer;
2840     GtkTreeViewColumn *treecolumn;
2841     GtkTreeSelection *treeselection;
2842     GtkTreeIter treeiterlevels[8];
2843 #else
2844     GtkTreeItem *treeitemlevels[8];
2845     GtkTree *treelevels[8];
2846 #endif
2847     struct dlgparam dp;
2848     struct Shortcuts scs;
2849
2850     struct selparam *selparams = NULL;
2851     int nselparams = 0, selparamsize = 0;
2852
2853     dlg_init(&dp);
2854
2855     for (index = 0; index < lenof(scs.sc); index++) {
2856         scs.sc[index].action = SHORTCUT_EMPTY;
2857     }
2858
2859     window = gtk_dialog_new();
2860
2861     ctrlbox = ctrl_new_box();
2862     setup_config_box(ctrlbox, midsession, cfg->protocol, protcfginfo);
2863     unix_setup_config_box(ctrlbox, midsession, cfg->protocol);
2864     gtk_setup_config_box(ctrlbox, midsession, window);
2865
2866     gtk_window_set_title(GTK_WINDOW(window), title);
2867     hbox = gtk_hbox_new(FALSE, 4);
2868     gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox), hbox, TRUE, TRUE, 0);
2869     gtk_container_set_border_width(GTK_CONTAINER(hbox), 10);
2870     gtk_widget_show(hbox);
2871     vbox = gtk_vbox_new(FALSE, 4);
2872     gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
2873     gtk_widget_show(vbox);
2874     cols = columns_new(4);
2875     gtk_box_pack_start(GTK_BOX(vbox), cols, FALSE, FALSE, 0);
2876     gtk_widget_show(cols);
2877     label = gtk_label_new("Category:");
2878     columns_add(COLUMNS(cols), label, 0, 1);
2879     columns_force_left_align(COLUMNS(cols), label);
2880     gtk_widget_show(label);
2881     treescroll = gtk_scrolled_window_new(NULL, NULL);
2882 #if GTK_CHECK_VERSION(2,0,0)
2883     treestore = gtk_tree_store_new
2884         (TREESTORE_NUM, G_TYPE_STRING, G_TYPE_INT);
2885     tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(treestore));
2886     gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(tree), FALSE);
2887     treerenderer = gtk_cell_renderer_text_new();
2888     treecolumn = gtk_tree_view_column_new_with_attributes
2889         ("Label", treerenderer, "text", 0, NULL);
2890     gtk_tree_view_append_column(GTK_TREE_VIEW(tree), treecolumn);
2891     treeselection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree));
2892     gtk_tree_selection_set_mode(treeselection, GTK_SELECTION_BROWSE);
2893     gtk_container_add(GTK_CONTAINER(treescroll), tree);
2894 #else
2895     tree = gtk_tree_new();
2896     gtk_tree_set_view_mode(GTK_TREE(tree), GTK_TREE_VIEW_ITEM);
2897     gtk_tree_set_selection_mode(GTK_TREE(tree), GTK_SELECTION_BROWSE);
2898     gtk_signal_connect(GTK_OBJECT(tree), "focus",
2899                        GTK_SIGNAL_FUNC(tree_focus), &dp);
2900 #endif
2901     gtk_signal_connect(GTK_OBJECT(tree), "focus_in_event",
2902                        GTK_SIGNAL_FUNC(widget_focus), &dp);
2903     shortcut_add(&scs, label, 'g', SHORTCUT_TREE, tree);
2904     gtk_widget_show(treescroll);
2905     gtk_box_pack_start(GTK_BOX(vbox), treescroll, TRUE, TRUE, 0);
2906     panels = gtk_notebook_new();
2907     gtk_notebook_set_show_tabs(GTK_NOTEBOOK(panels), FALSE);
2908     gtk_notebook_set_show_border(GTK_NOTEBOOK(panels), FALSE);
2909     gtk_box_pack_start(GTK_BOX(hbox), panels, TRUE, TRUE, 0);
2910     gtk_widget_show(panels);
2911
2912     panelvbox = NULL;
2913     path = NULL;
2914     level = 0;
2915     for (index = 0; index < ctrlbox->nctrlsets; index++) {
2916         struct controlset *s = ctrlbox->ctrlsets[index];
2917         GtkWidget *w;
2918
2919         if (!*s->pathname) {
2920             w = layout_ctrls(&dp, &scs, s, GTK_WINDOW(window));
2921
2922             set_dialog_action_area(GTK_DIALOG(window), w);
2923         } else {
2924             int j = path ? ctrl_path_compare(s->pathname, path) : 0;
2925             if (j != INT_MAX) {        /* add to treeview, start new panel */
2926                 char *c;
2927 #if GTK_CHECK_VERSION(2,0,0)
2928                 GtkTreeIter treeiter;
2929 #else
2930                 GtkWidget *treeitem;
2931 #endif
2932                 int first;
2933
2934                 /*
2935                  * We expect never to find an implicit path
2936                  * component. For example, we expect never to see
2937                  * A/B/C followed by A/D/E, because that would
2938                  * _implicitly_ create A/D. All our path prefixes
2939                  * are expected to contain actual controls and be
2940                  * selectable in the treeview; so we would expect
2941                  * to see A/D _explicitly_ before encountering
2942                  * A/D/E.
2943                  */
2944                 assert(j == ctrl_path_elements(s->pathname) - 1);
2945
2946                 c = strrchr(s->pathname, '/');
2947                 if (!c)
2948                     c = s->pathname;
2949                 else
2950                     c++;
2951
2952                 path = s->pathname;
2953
2954                 first = (panelvbox == NULL);
2955
2956                 panelvbox = gtk_vbox_new(FALSE, 4);
2957                 gtk_widget_show(panelvbox);
2958                 gtk_notebook_append_page(GTK_NOTEBOOK(panels), panelvbox,
2959                                          NULL);
2960                 if (first) {
2961                     gint page_num;
2962
2963                     page_num = gtk_notebook_page_num(GTK_NOTEBOOK(panels),
2964                                                      panelvbox);
2965                     gtk_notebook_set_page(GTK_NOTEBOOK(panels), page_num);
2966                 }
2967
2968                 if (nselparams >= selparamsize) {
2969                     selparamsize += 16;
2970                     selparams = sresize(selparams, selparamsize,
2971                                         struct selparam);
2972                 }
2973                 selparams[nselparams].dp = &dp;
2974                 selparams[nselparams].panels = GTK_NOTEBOOK(panels);
2975                 selparams[nselparams].panel = panelvbox;
2976                 selparams[nselparams].shortcuts = scs;   /* structure copy */
2977
2978                 assert(j-1 < level);
2979
2980 #if GTK_CHECK_VERSION(2,0,0)
2981                 if (j > 0)
2982                     /* treeiterlevels[j-1] will always be valid because we
2983                      * don't allow implicit path components; see above.
2984                      */
2985                     gtk_tree_store_append(treestore, &treeiter,
2986                                           &treeiterlevels[j-1]);
2987                 else
2988                     gtk_tree_store_append(treestore, &treeiter, NULL);
2989                 gtk_tree_store_set(treestore, &treeiter,
2990                                    TREESTORE_PATH, c,
2991                                    TREESTORE_PARAMS, nselparams,
2992                                    -1);
2993                 treeiterlevels[j] = treeiter;
2994
2995                 selparams[nselparams].depth = j;
2996                 if (j > 0) {
2997                     selparams[nselparams].treepath =
2998                         gtk_tree_model_get_path(GTK_TREE_MODEL(treestore),
2999                                                 &treeiterlevels[j-1]);
3000                     /*
3001                      * We are going to collapse all tree branches
3002                      * at depth greater than 2, but not _yet_; see
3003                      * the comment at the call to
3004                      * gtk_tree_view_collapse_row below.
3005                      */
3006                     gtk_tree_view_expand_row(GTK_TREE_VIEW(tree),
3007                                              selparams[nselparams].treepath,
3008                                              FALSE);
3009                 } else {
3010                     selparams[nselparams].treepath = NULL;
3011                 }
3012 #else
3013                 treeitem = gtk_tree_item_new_with_label(c);
3014                 if (j > 0) {
3015                     if (!treelevels[j-1]) {
3016                         treelevels[j-1] = GTK_TREE(gtk_tree_new());
3017                         gtk_tree_item_set_subtree
3018                             (treeitemlevels[j-1],
3019                              GTK_WIDGET(treelevels[j-1]));
3020                         if (j < 2)
3021                             gtk_tree_item_expand(treeitemlevels[j-1]);
3022                         else
3023                             gtk_tree_item_collapse(treeitemlevels[j-1]);
3024                     }
3025                     gtk_tree_append(treelevels[j-1], treeitem);
3026                 } else {
3027                     gtk_tree_append(GTK_TREE(tree), treeitem);
3028                 }
3029                 treeitemlevels[j] = GTK_TREE_ITEM(treeitem);
3030                 treelevels[j] = NULL;
3031
3032                 gtk_signal_connect(GTK_OBJECT(treeitem), "key_press_event",
3033                                    GTK_SIGNAL_FUNC(tree_key_press), &dp);
3034                 gtk_signal_connect(GTK_OBJECT(treeitem), "focus_in_event",
3035                                    GTK_SIGNAL_FUNC(widget_focus), &dp);
3036
3037                 gtk_widget_show(treeitem);
3038
3039                 if (first)
3040                     gtk_tree_select_child(GTK_TREE(tree), treeitem);
3041                 selparams[nselparams].treeitem = treeitem;
3042 #endif
3043
3044                 level = j+1;
3045                 nselparams++;
3046             }
3047
3048             w = layout_ctrls(&dp, &selparams[nselparams-1].shortcuts, s, NULL);
3049             gtk_box_pack_start(GTK_BOX(panelvbox), w, FALSE, FALSE, 0);
3050             gtk_widget_show(w);
3051         }
3052     }
3053
3054 #if GTK_CHECK_VERSION(2,0,0)
3055     {
3056         GtkRequisition req;
3057         int i;
3058
3059         /*
3060          * We want our tree view to come up with all branches at
3061          * depth 2 or more collapsed. However, if we start off
3062          * with those branches collapsed, then the tree view's
3063          * size request will be calculated based on the width of
3064          * the collapsed tree. So instead we start with them all
3065          * expanded; then we ask for the current size request,
3066          * collapse the relevant rows, and force the width to the
3067          * value we just computed. This arranges that the tree
3068          * view is wide enough to have all branches expanded
3069          * safely.
3070          */
3071
3072         gtk_widget_size_request(tree, &req);
3073
3074         for (i = 0; i < nselparams; i++)
3075             if (selparams[i].depth >= 2)
3076                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(tree),
3077                                            selparams[i].treepath);
3078
3079         gtk_widget_set_size_request(tree, req.width, -1);
3080     }
3081 #endif
3082
3083 #if GTK_CHECK_VERSION(2,0,0)
3084     g_signal_connect(G_OBJECT(treeselection), "changed",
3085                      G_CALLBACK(treeselection_changed), selparams);
3086 #else
3087     dp.ntreeitems = nselparams;
3088     dp.treeitems = snewn(dp.ntreeitems, GtkWidget *);
3089
3090     for (index = 0; index < nselparams; index++) {
3091         gtk_signal_connect(GTK_OBJECT(selparams[index].treeitem), "select",
3092                            GTK_SIGNAL_FUNC(treeitem_sel),
3093                            &selparams[index]);
3094         dp.treeitems[index] = selparams[index].treeitem;
3095     }
3096 #endif
3097
3098     dp.data = cfg;
3099     dlg_refresh(NULL, &dp);
3100
3101     dp.shortcuts = &selparams[0].shortcuts;
3102 #if !GTK_CHECK_VERSION(2,0,0)
3103     dp.currtreeitem = dp.treeitems[0];
3104 #endif
3105     dp.lastfocus = NULL;
3106     dp.retval = 0;
3107     dp.window = window;
3108
3109     {
3110         /* in gtkwin.c */
3111         extern void set_window_icon(GtkWidget *window,
3112                                     const char *const *const *icon,
3113                                     int n_icon);
3114         extern const char *const *const cfg_icon[];
3115         extern const int n_cfg_icon;
3116         set_window_icon(window, cfg_icon, n_cfg_icon);
3117     }
3118
3119 #if !GTK_CHECK_VERSION(2,0,0)
3120     gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(treescroll),
3121                                           tree);
3122 #endif
3123     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(treescroll),
3124                                    GTK_POLICY_NEVER,
3125                                    GTK_POLICY_AUTOMATIC);
3126     gtk_widget_show(tree);
3127
3128     gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
3129     gtk_widget_show(window);
3130
3131     /*
3132      * Set focus into the first available control.
3133      */
3134     for (index = 0; index < ctrlbox->nctrlsets; index++) {
3135         struct controlset *s = ctrlbox->ctrlsets[index];
3136         int done = 0;
3137         int j;
3138
3139         if (*s->pathname) {
3140             for (j = 0; j < s->ncontrols; j++)
3141                 if (s->ctrls[j]->generic.type != CTRL_TABDELAY &&
3142                     s->ctrls[j]->generic.type != CTRL_COLUMNS &&
3143                     s->ctrls[j]->generic.type != CTRL_TEXT) {
3144                     dlg_set_focus(s->ctrls[j], &dp);
3145                     dp.lastfocus = s->ctrls[j];
3146                     done = 1;
3147                     break;
3148                 }
3149         }
3150         if (done)
3151             break;
3152     }
3153
3154     gtk_signal_connect(GTK_OBJECT(window), "destroy",
3155                        GTK_SIGNAL_FUNC(window_destroy), NULL);
3156     gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
3157                        GTK_SIGNAL_FUNC(win_key_press), &dp);
3158
3159     gtk_main();
3160
3161     dlg_cleanup(&dp);
3162     sfree(selparams);
3163
3164     return dp.retval;
3165 }
3166
3167 static void messagebox_handler(union control *ctrl, void *dlg,
3168                                void *data, int event)
3169 {
3170     if (event == EVENT_ACTION)
3171         dlg_end(dlg, ctrl->generic.context.i);
3172 }
3173 int messagebox(GtkWidget *parentwin, char *title, char *msg, int minwid, ...)
3174 {
3175     GtkWidget *window, *w0, *w1;
3176     struct controlbox *ctrlbox;
3177     struct controlset *s0, *s1;
3178     union control *c;
3179     struct dlgparam dp;
3180     struct Shortcuts scs;
3181     int index, ncols;
3182     va_list ap;
3183
3184     dlg_init(&dp);
3185
3186     for (index = 0; index < lenof(scs.sc); index++) {
3187         scs.sc[index].action = SHORTCUT_EMPTY;
3188     }
3189
3190     ctrlbox = ctrl_new_box();
3191
3192     ncols = 0;
3193     va_start(ap, minwid);
3194     while (va_arg(ap, char *) != NULL) {
3195         ncols++;
3196         (void) va_arg(ap, int);        /* shortcut */
3197         (void) va_arg(ap, int);        /* normal/default/cancel */
3198         (void) va_arg(ap, int);        /* end value */
3199     }
3200     va_end(ap);
3201
3202     s0 = ctrl_getset(ctrlbox, "", "", "");
3203     c = ctrl_columns(s0, 2, 50, 50);
3204     c->columns.ncols = s0->ncolumns = ncols;
3205     c->columns.percentages = sresize(c->columns.percentages, ncols, int);
3206     for (index = 0; index < ncols; index++)
3207         c->columns.percentages[index] = (index+1)*100/ncols - index*100/ncols;
3208     va_start(ap, minwid);
3209     index = 0;
3210     while (1) {
3211         char *title = va_arg(ap, char *);
3212         int shortcut, type, value;
3213         if (title == NULL)
3214             break;
3215         shortcut = va_arg(ap, int);
3216         type = va_arg(ap, int);
3217         value = va_arg(ap, int);
3218         c = ctrl_pushbutton(s0, title, shortcut, HELPCTX(no_help),
3219                             messagebox_handler, I(value));
3220         c->generic.column = index++;
3221         if (type > 0)
3222             c->button.isdefault = TRUE;
3223         else if (type < 0)
3224             c->button.iscancel = TRUE;
3225     }
3226     va_end(ap);
3227
3228     s1 = ctrl_getset(ctrlbox, "x", "", "");
3229     ctrl_text(s1, msg, HELPCTX(no_help));
3230
3231     window = gtk_dialog_new();
3232     gtk_window_set_title(GTK_WINDOW(window), title);
3233     w0 = layout_ctrls(&dp, &scs, s0, GTK_WINDOW(window));
3234     set_dialog_action_area(GTK_DIALOG(window), w0);
3235     gtk_widget_show(w0);
3236     w1 = layout_ctrls(&dp, &scs, s1, GTK_WINDOW(window));
3237     gtk_container_set_border_width(GTK_CONTAINER(w1), 10);
3238     gtk_widget_set_usize(w1, minwid+20, -1);
3239     gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
3240                        w1, TRUE, TRUE, 0);
3241     gtk_widget_show(w1);
3242
3243     dp.shortcuts = &scs;
3244     dp.lastfocus = NULL;
3245     dp.retval = 0;
3246     dp.window = window;
3247
3248     gtk_window_set_modal(GTK_WINDOW(window), TRUE);
3249     if (parentwin) {
3250         set_transient_window_pos(parentwin, window);
3251         gtk_window_set_transient_for(GTK_WINDOW(window),
3252                                      GTK_WINDOW(parentwin));
3253     } else
3254         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
3255     gtk_widget_show(window);
3256
3257     gtk_signal_connect(GTK_OBJECT(window), "destroy",
3258                        GTK_SIGNAL_FUNC(window_destroy), NULL);
3259     gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
3260                        GTK_SIGNAL_FUNC(win_key_press), &dp);
3261
3262     gtk_main();
3263
3264     dlg_cleanup(&dp);
3265     ctrl_free_box(ctrlbox);
3266
3267     return dp.retval;
3268 }
3269
3270 static int string_width(char *text)
3271 {
3272     GtkWidget *label = gtk_label_new(text);
3273     GtkRequisition req;
3274     gtk_widget_size_request(label, &req);
3275     gtk_object_sink(GTK_OBJECT(label));
3276     return req.width;
3277 }
3278
3279 int reallyclose(void *frontend)
3280 {
3281     char *title = dupcat(appname, " Exit Confirmation", NULL);
3282     int ret = messagebox(GTK_WIDGET(get_window(frontend)),
3283                          title, "Are you sure you want to close this session?",
3284                          string_width("Most of the width of the above text"),
3285                          "Yes", 'y', +1, 1,
3286                          "No", 'n', -1, 0,
3287                          NULL);
3288     sfree(title);
3289     return ret;
3290 }
3291
3292 int verify_ssh_host_key(void *frontend, char *host, int port, char *keytype,
3293                         char *keystr, char *fingerprint,
3294                         void (*callback)(void *ctx, int result), void *ctx)
3295 {
3296     static const char absenttxt[] =
3297         "The server's host key is not cached. You have no guarantee "
3298         "that the server is the computer you think it is.\n"
3299         "The server's %s key fingerprint is:\n"
3300         "%s\n"
3301         "If you trust this host, press \"Accept\" to add the key to "
3302         "PuTTY's cache and carry on connecting.\n"
3303         "If you want to carry on connecting just once, without "
3304         "adding the key to the cache, press \"Connect Once\".\n"
3305         "If you do not trust this host, press \"Cancel\" to abandon the "
3306         "connection.";
3307     static const char wrongtxt[] =
3308         "WARNING - POTENTIAL SECURITY BREACH!\n"
3309         "The server's host key does not match the one PuTTY has "
3310         "cached. This means that either the server administrator "
3311         "has changed the host key, or you have actually connected "
3312         "to another computer pretending to be the server.\n"
3313         "The new %s key fingerprint is:\n"
3314         "%s\n"
3315         "If you were expecting this change and trust the new key, "
3316         "press \"Accept\" to update PuTTY's cache and continue connecting.\n"
3317         "If you want to carry on connecting but without updating "
3318         "the cache, press \"Connect Once\".\n"
3319         "If you want to abandon the connection completely, press "
3320         "\"Cancel\" to cancel. Pressing \"Cancel\" is the ONLY guaranteed "
3321         "safe choice.";
3322     char *text;
3323     int ret;
3324
3325     /*
3326      * Verify the key.
3327      */
3328     ret = verify_host_key(host, port, keytype, keystr);
3329
3330     if (ret == 0)                      /* success - key matched OK */
3331         return 1;
3332
3333     text = dupprintf((ret == 2 ? wrongtxt : absenttxt), keytype, fingerprint);
3334
3335     ret = messagebox(GTK_WIDGET(get_window(frontend)),
3336                      "PuTTY Security Alert", text,
3337                      string_width(fingerprint),
3338                      "Accept", 'a', 0, 2,
3339                      "Connect Once", 'o', 0, 1,
3340                      "Cancel", 'c', -1, 0,
3341                      NULL);
3342
3343     sfree(text);
3344
3345     if (ret == 2) {
3346         store_host_key(host, port, keytype, keystr);
3347         return 1;                      /* continue with connection */
3348     } else if (ret == 1)
3349         return 1;                      /* continue with connection */
3350     return 0;                          /* do not continue with connection */
3351 }
3352
3353 /*
3354  * Ask whether the selected algorithm is acceptable (since it was
3355  * below the configured 'warn' threshold).
3356  */
3357 int askalg(void *frontend, const char *algtype, const char *algname,
3358            void (*callback)(void *ctx, int result), void *ctx)
3359 {
3360     static const char msg[] =
3361         "The first %s supported by the server is "
3362         "%s, which is below the configured warning threshold.\n"
3363         "Continue with connection?";
3364     char *text;
3365     int ret;
3366
3367     text = dupprintf(msg, algtype, algname);
3368     ret = messagebox(GTK_WIDGET(get_window(frontend)),
3369                      "PuTTY Security Alert", text,
3370                      string_width("Continue with connection?"),
3371                      "Yes", 'y', 0, 1,
3372                      "No", 'n', 0, 0,
3373                      NULL);
3374     sfree(text);
3375
3376     if (ret) {
3377         return 1;
3378     } else {
3379         return 0;
3380     }
3381 }
3382
3383 void old_keyfile_warning(void)
3384 {
3385     /*
3386      * This should never happen on Unix. We hope.
3387      */
3388 }
3389
3390 void fatal_message_box(void *window, char *msg)
3391 {
3392     messagebox(window, "PuTTY Fatal Error", msg,
3393                string_width("REASONABLY LONG LINE OF TEXT FOR BASIC SANITY"),
3394                "OK", 'o', 1, 1, NULL);
3395 }
3396
3397 void fatalbox(char *p, ...)
3398 {
3399     va_list ap;
3400     char *msg;
3401     va_start(ap, p);
3402     msg = dupvprintf(p, ap);
3403     va_end(ap);
3404     fatal_message_box(NULL, msg);
3405     sfree(msg);
3406     cleanup_exit(1);
3407 }
3408
3409 static GtkWidget *aboutbox = NULL;
3410
3411 static void about_close_clicked(GtkButton *button, gpointer data)
3412 {
3413     gtk_widget_destroy(aboutbox);
3414     aboutbox = NULL;
3415 }
3416
3417 static void licence_clicked(GtkButton *button, gpointer data)
3418 {
3419     char *title;
3420
3421     char *licence =
3422         "Copyright 1997-2010 Simon Tatham.\n\n"
3423
3424         "Portions copyright Robert de Bath, Joris van Rantwijk, Delian "
3425         "Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas "
3426         "Barry, Justin Bradford, Ben Harris, Malcolm Smith, Ahmad Khalifa, "
3427         "Markus Kuhn, Colin Watson, and CORE SDI S.A.\n\n"
3428
3429         "Permission is hereby granted, free of charge, to any person "
3430         "obtaining a copy of this software and associated documentation "
3431         "files (the ""Software""), to deal in the Software without restriction, "
3432         "including without limitation the rights to use, copy, modify, merge, "
3433         "publish, distribute, sublicense, and/or sell copies of the Software, "
3434         "and to permit persons to whom the Software is furnished to do so, "
3435         "subject to the following conditions:\n\n"
3436
3437         "The above copyright notice and this permission notice shall be "
3438         "included in all copies or substantial portions of the Software.\n\n"
3439
3440         "THE SOFTWARE IS PROVIDED ""AS IS"", WITHOUT "
3441         "WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, "
3442         "INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF "
3443         "MERCHANTABILITY, FITNESS FOR A PARTICULAR "
3444         "PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE "
3445         "COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES "
3446         "OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, "
3447         "TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN "
3448         "CONNECTION WITH THE SOFTWARE OR THE USE OR "
3449         "OTHER DEALINGS IN THE SOFTWARE.";
3450
3451     title = dupcat(appname, " Licence", NULL);
3452     assert(aboutbox != NULL);
3453     messagebox(aboutbox, title, licence,
3454                string_width("LONGISH LINE OF TEXT SO THE LICENCE"
3455                             " BOX ISN'T EXCESSIVELY TALL AND THIN"),
3456                "OK", 'o', 1, 1, NULL);
3457     sfree(title);
3458 }
3459
3460 void about_box(void *window)
3461 {
3462     GtkWidget *w;
3463     char *title;
3464
3465     if (aboutbox) {
3466         gtk_widget_grab_focus(aboutbox);
3467         return;
3468     }
3469
3470     aboutbox = gtk_dialog_new();
3471     gtk_container_set_border_width(GTK_CONTAINER(aboutbox), 10);
3472     title = dupcat("About ", appname, NULL);
3473     gtk_window_set_title(GTK_WINDOW(aboutbox), title);
3474     sfree(title);
3475
3476     w = gtk_button_new_with_label("Close");
3477     GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
3478     gtk_window_set_default(GTK_WINDOW(aboutbox), w);
3479     gtk_box_pack_end(GTK_BOX(GTK_DIALOG(aboutbox)->action_area),
3480                      w, FALSE, FALSE, 0);
3481     gtk_signal_connect(GTK_OBJECT(w), "clicked",
3482                        GTK_SIGNAL_FUNC(about_close_clicked), NULL);
3483     gtk_widget_show(w);
3484
3485     w = gtk_button_new_with_label("View Licence");
3486     GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
3487     gtk_box_pack_end(GTK_BOX(GTK_DIALOG(aboutbox)->action_area),
3488                      w, FALSE, FALSE, 0);
3489     gtk_signal_connect(GTK_OBJECT(w), "clicked",
3490                        GTK_SIGNAL_FUNC(licence_clicked), NULL);
3491     gtk_widget_show(w);
3492
3493     w = gtk_label_new(appname);
3494     gtk_box_pack_start(GTK_BOX(GTK_DIALOG(aboutbox)->vbox),
3495                        w, FALSE, FALSE, 0);
3496     gtk_widget_show(w);
3497
3498     w = gtk_label_new(ver);
3499     gtk_box_pack_start(GTK_BOX(GTK_DIALOG(aboutbox)->vbox),
3500                        w, FALSE, FALSE, 5);
3501     gtk_widget_show(w);
3502
3503     w = gtk_label_new("Copyright 1997-2010 Simon Tatham. All rights reserved");
3504     gtk_box_pack_start(GTK_BOX(GTK_DIALOG(aboutbox)->vbox),
3505                        w, FALSE, FALSE, 5);
3506     gtk_widget_show(w);
3507
3508     set_transient_window_pos(GTK_WIDGET(window), aboutbox);
3509     gtk_widget_show(aboutbox);
3510 }
3511
3512 struct eventlog_stuff {
3513     GtkWidget *parentwin, *window;
3514     struct controlbox *eventbox;
3515     struct Shortcuts scs;
3516     struct dlgparam dp;
3517     union control *listctrl;
3518     char **events;
3519     int nevents, negsize;
3520     char *seldata;
3521     int sellen;
3522     int ignore_selchange;
3523 };
3524
3525 static void eventlog_destroy(GtkWidget *widget, gpointer data)
3526 {
3527     struct eventlog_stuff *es = (struct eventlog_stuff *)data;
3528
3529     es->window = NULL;
3530     sfree(es->seldata);
3531     dlg_cleanup(&es->dp);
3532     ctrl_free_box(es->eventbox);
3533 }
3534 static void eventlog_ok_handler(union control *ctrl, void *dlg,
3535                                 void *data, int event)
3536 {
3537     if (event == EVENT_ACTION)
3538         dlg_end(dlg, 0);
3539 }
3540 static void eventlog_list_handler(union control *ctrl, void *dlg,
3541                                   void *data, int event)
3542 {
3543     struct eventlog_stuff *es = (struct eventlog_stuff *)data;
3544
3545     if (event == EVENT_REFRESH) {
3546         int i;
3547
3548         dlg_update_start(ctrl, dlg);
3549         dlg_listbox_clear(ctrl, dlg);
3550         for (i = 0; i < es->nevents; i++) {
3551             dlg_listbox_add(ctrl, dlg, es->events[i]);
3552         }
3553         dlg_update_done(ctrl, dlg);
3554     } else if (event == EVENT_SELCHANGE) {
3555         int i;
3556         int selsize = 0;
3557
3558         /*
3559          * If this SELCHANGE event is happening as a result of
3560          * deliberate deselection because someone else has grabbed
3561          * the selection, the last thing we want to do is pre-empt
3562          * them.
3563          */
3564         if (es->ignore_selchange)
3565             return;
3566
3567         /*
3568          * Construct the data to use as the selection.
3569          */
3570         sfree(es->seldata);
3571         es->seldata = NULL;
3572         es->sellen = 0;
3573         for (i = 0; i < es->nevents; i++) {
3574             if (dlg_listbox_issel(ctrl, dlg, i)) {
3575                 int extralen = strlen(es->events[i]);
3576
3577                 if (es->sellen + extralen + 2 > selsize) {
3578                     selsize = es->sellen + extralen + 512;
3579                     es->seldata = sresize(es->seldata, selsize, char);
3580                 }
3581
3582                 strcpy(es->seldata + es->sellen, es->events[i]);
3583                 es->sellen += extralen;
3584                 es->seldata[es->sellen++] = '\n';
3585             }
3586         }
3587
3588         if (gtk_selection_owner_set(es->window, GDK_SELECTION_PRIMARY,
3589                                     GDK_CURRENT_TIME)) {
3590             extern GdkAtom compound_text_atom;
3591
3592             gtk_selection_add_target(es->window, GDK_SELECTION_PRIMARY,
3593                                      GDK_SELECTION_TYPE_STRING, 1);
3594             gtk_selection_add_target(es->window, GDK_SELECTION_PRIMARY,
3595                                      compound_text_atom, 1);
3596         }
3597
3598     }
3599 }
3600
3601 void eventlog_selection_get(GtkWidget *widget, GtkSelectionData *seldata,
3602                             guint info, guint time_stamp, gpointer data)
3603 {
3604     struct eventlog_stuff *es = (struct eventlog_stuff *)data;
3605
3606     gtk_selection_data_set(seldata, seldata->target, 8,
3607                            (unsigned char *)es->seldata, es->sellen);
3608 }
3609
3610 gint eventlog_selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
3611                               gpointer data)
3612 {
3613     struct eventlog_stuff *es = (struct eventlog_stuff *)data;
3614     struct uctrl *uc;
3615
3616     /*
3617      * Deselect everything in the list box.
3618      */
3619     uc = dlg_find_byctrl(&es->dp, es->listctrl);
3620     es->ignore_selchange = 1;
3621 #if !GTK_CHECK_VERSION(2,0,0)
3622     assert(uc->list);
3623     gtk_list_unselect_all(GTK_LIST(uc->list));
3624 #else
3625     assert(uc->treeview);
3626     gtk_tree_selection_unselect_all
3627         (gtk_tree_view_get_selection(GTK_TREE_VIEW(uc->treeview)));
3628 #endif
3629     es->ignore_selchange = 0;
3630
3631     sfree(es->seldata);
3632     es->sellen = 0;
3633     es->seldata = NULL;
3634     return TRUE;
3635 }
3636
3637 void showeventlog(void *estuff, void *parentwin)
3638 {
3639     struct eventlog_stuff *es = (struct eventlog_stuff *)estuff;
3640     GtkWidget *window, *w0, *w1;
3641     GtkWidget *parent = GTK_WIDGET(parentwin);
3642     struct controlset *s0, *s1;
3643     union control *c;
3644     int index;
3645     char *title;
3646
3647     if (es->window) {
3648         gtk_widget_grab_focus(es->window);
3649         return;
3650     }
3651
3652     dlg_init(&es->dp);
3653
3654     for (index = 0; index < lenof(es->scs.sc); index++) {
3655         es->scs.sc[index].action = SHORTCUT_EMPTY;
3656     }
3657
3658     es->eventbox = ctrl_new_box();
3659
3660     s0 = ctrl_getset(es->eventbox, "", "", "");
3661     ctrl_columns(s0, 3, 33, 34, 33);
3662     c = ctrl_pushbutton(s0, "Close", 'c', HELPCTX(no_help),
3663                         eventlog_ok_handler, P(NULL));
3664     c->button.column = 1;
3665     c->button.isdefault = TRUE;
3666
3667     s1 = ctrl_getset(es->eventbox, "x", "", "");
3668     es->listctrl = c = ctrl_listbox(s1, NULL, NO_SHORTCUT, HELPCTX(no_help),
3669                                     eventlog_list_handler, P(es));
3670     c->listbox.height = 10;
3671     c->listbox.multisel = 2;
3672     c->listbox.ncols = 3;
3673     c->listbox.percentages = snewn(3, int);
3674     c->listbox.percentages[0] = 25;
3675     c->listbox.percentages[1] = 10;
3676     c->listbox.percentages[2] = 65;
3677
3678     es->window = window = gtk_dialog_new();
3679     title = dupcat(appname, " Event Log", NULL);
3680     gtk_window_set_title(GTK_WINDOW(window), title);
3681     sfree(title);
3682     w0 = layout_ctrls(&es->dp, &es->scs, s0, GTK_WINDOW(window));
3683     set_dialog_action_area(GTK_DIALOG(window), w0);
3684     gtk_widget_show(w0);
3685     w1 = layout_ctrls(&es->dp, &es->scs, s1, GTK_WINDOW(window));
3686     gtk_container_set_border_width(GTK_CONTAINER(w1), 10);
3687     gtk_widget_set_usize(w1, 20 +
3688                          string_width("LINE OF TEXT GIVING WIDTH OF EVENT LOG"
3689                                       " IS QUITE LONG 'COS SSH LOG ENTRIES"
3690                                       " ARE WIDE"), -1);
3691     gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
3692                        w1, TRUE, TRUE, 0);
3693     gtk_widget_show(w1);
3694
3695     es->dp.data = es;
3696     es->dp.shortcuts = &es->scs;
3697     es->dp.lastfocus = NULL;
3698     es->dp.retval = 0;
3699     es->dp.window = window;
3700
3701     dlg_refresh(NULL, &es->dp);
3702
3703     if (parent) {
3704         set_transient_window_pos(parent, window);
3705         gtk_window_set_transient_for(GTK_WINDOW(window),
3706                                      GTK_WINDOW(parent));
3707     } else
3708         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
3709     gtk_widget_show(window);
3710
3711     gtk_signal_connect(GTK_OBJECT(window), "destroy",
3712                        GTK_SIGNAL_FUNC(eventlog_destroy), es);
3713     gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
3714                        GTK_SIGNAL_FUNC(win_key_press), &es->dp);
3715     gtk_signal_connect(GTK_OBJECT(window), "selection_get",
3716                        GTK_SIGNAL_FUNC(eventlog_selection_get), es);
3717     gtk_signal_connect(GTK_OBJECT(window), "selection_clear_event",
3718                        GTK_SIGNAL_FUNC(eventlog_selection_clear), es);
3719 }
3720
3721 void *eventlogstuff_new(void)
3722 {
3723     struct eventlog_stuff *es;
3724     es = snew(struct eventlog_stuff);
3725     memset(es, 0, sizeof(*es));
3726     return es;
3727 }
3728
3729 void logevent_dlg(void *estuff, const char *string)
3730 {
3731     struct eventlog_stuff *es = (struct eventlog_stuff *)estuff;
3732
3733     char timebuf[40];
3734     struct tm tm;
3735
3736     if (es->nevents >= es->negsize) {
3737         es->negsize += 64;
3738         es->events = sresize(es->events, es->negsize, char *);
3739     }
3740
3741     tm=ltime();
3742     strftime(timebuf, sizeof(timebuf), "%Y-%m-%d %H:%M:%S\t", &tm);
3743
3744     es->events[es->nevents] = snewn(strlen(timebuf) + strlen(string) + 1, char);
3745     strcpy(es->events[es->nevents], timebuf);
3746     strcat(es->events[es->nevents], string);
3747     if (es->window) {
3748         dlg_listbox_add(es->listctrl, &es->dp, es->events[es->nevents]);
3749     }
3750     es->nevents++;
3751 }
3752
3753 int askappend(void *frontend, Filename filename,
3754               void (*callback)(void *ctx, int result), void *ctx)
3755 {
3756     static const char msgtemplate[] =
3757         "The session log file \"%.*s\" already exists. "
3758         "You can overwrite it with a new session log, "
3759         "append your session log to the end of it, "
3760         "or disable session logging for this session.";
3761     char *message;
3762     char *mbtitle;
3763     int mbret;
3764
3765     message = dupprintf(msgtemplate, FILENAME_MAX, filename.path);
3766     mbtitle = dupprintf("%s Log to File", appname);
3767
3768     mbret = messagebox(get_window(frontend), mbtitle, message,
3769                        string_width("LINE OF TEXT SUITABLE FOR THE"
3770                                     " ASKAPPEND WIDTH"),
3771                        "Overwrite", 'o', 1, 2,
3772                        "Append", 'a', 0, 1,
3773                        "Disable", 'd', -1, 0,
3774                        NULL);
3775
3776     sfree(message);
3777     sfree(mbtitle);
3778
3779     return mbret;
3780 }